Extra Credit

One year after Summer School, Sam comes to the city to study. There are many things to explore -- fortunately, she has made a list.

This is part of a series and borrows some characters, but the story can be read standalone. I still recommend reading Summer School first.

Mind the tags: If poopy diapers gross you out, this isn't the story for you!

***

Chapter 1

It was late August, one of the last days of summer, and still decidedly too hot. After dragging her heavy suitcase up the ramp to her dorm, Sam stopped for a moment to wipe the sweat from her face. The building was located in a lush, quiet part of campus, between old trees, a small pond, and not too far from the library. It looked just like in the pictures.

"It's beautiful here," she said, glancing toward a family of ducks drifting in the water. "I'm so excited that I'm finally here."

"A new part of your life begins," Janie said, setting down the huge duffle bag. "Want me to come in and take this to your room?"

"I got it from here. Thanks for picking me up, Auntie."

Janie heaved the duffle bag on top of Sam's suitcase. "Sweetie, if there's anything at all, just let me know, okay? And if you ever need peace and quiet, you're always welcome at our place. Stella and I love having you around."

"Thank you." Sam gave her a long hug, then grabbed the handle of her suitcase. "There's actually something. What about that job we talked about?"

"It's yours if you want it. But are you sure that's what you wanna do?"

"Auntie, I've been babysitting since I was twelve years old. I've changed my share of diapers. It'll be fun, and I might run into Mika."

Janie grinned. "Did you let him know that you're here?"

"I'll send him a message when I've settled in. I don't want to come across as too clingy." Sam swallowed. "Do you know if he has a girlfriend?"

"No idea, sweetie. You stayed in touch, didn't you?"

"We did, but we never talked about that. I mean, I couldn't expect him to wait. We only had a few days together, and that was a year ago."

Janie gave her another hug. "If the boy's got any sense, he waited. Now, have fun, and don't forget: dinner at our place on Friday. You can bring Mika and stay overnight if you want."

"Thanks, Auntie!"

The interior of the dorm was a bit dated, but tidy. Sam dragged her suitcase over the faded linoleum floor, the duffle bag slung over her shoulder. Up on the third floor, she took a left turn out of the elevator and stopped in front of room three seventeen, the second-to-last room down the hall. The door stood open, and after checking the email on her phone for confirmation, she knocked on the doorframe and walked in.

A curvy brunette was kneeling in front of a closet, surrounded by plastic bags and a large, old-fashioned suitcase. She wore glasses, a light gray pullover that hugged her figure, and a tight-fitting pair of jeans.

"Hi," Sam said. "I'm Samantha -- Sam. I guess we're roommates."

The brunette looked up. "Hey, Sam. I'm Grace." She pointed at the chaos around her. "Sorry about the mess. I hope you don't mind that I picked this side."

"That's fine. I don't think it makes much of a difference."

Sam glanced around. Except for the bathroom on the right, the room was completely symmetrical: there was a narrow bed and a large closet at the wall on either side, and two desks faced each other in the middle of the room. Her gaze stopped at the life-sized poster of Jesus, sitting amidst his disciples. She stared at it with an open mouth.

You've got to be kidding me.

Grace stood up and beamed at her. "Do you like it? Jesus is my guy."

"I can see that."

"Wait a sec," Grace opened her bottom desk drawer and pulled out a ring. "Do you want a promise ring? You vow to not have sex before marriage."

"I'm afraid that ship has already sailed."

Grace grimaced, carefully putting the ring back in the drawer. "I will pray for you."

***

Stowing away her clothes and other things took a good twenty minutes. Clothes, underwear, and towels went into the closet, books on the little shelf above the bed, notebooks and writing materials into the various drawers of her desk. The small jute bag containing her vibrator, dildos, butt plugs, and lube remained in the suitcase under the bed.

Grace's gonna have a heart attack if she ever looks in that bag.

She had just sat down at her desk and connected her laptop to the network when she heard a knock on the door.

"Come in," Grace shouted before Sam could react.

The door opened and Mika peeked in. He looked like she remembered him from last year's visit: short blonde hair, brilliant green eyes, and a smile that made her heart beat faster.

"Hey, Sam," he said, standing in the doorframe. "Just wanted to say hello."

She jumped up and rushed into his arms. "I missed you. Thanks for keeping in touch."

"And I missed you, Sam. Most freshmen move in today, so I hoped I'd find you here. I was watching the place like some creepy stalker."

"I'm glad you did."

"No boys in our room," Grace said quickly. "That would be inappropriate."

Sam held him for a few moments longer, then took a deep breath. She turned toward Grace, her hands on her hips. "This isn't Bible Camp, Grace, and you're not my mother. You don't get to make the rules. But don't worry; he will stay on my side of the room."

"It's okay," Mika said, raising his hands in defense. "I'm saying out here, not even thinking inappropriate thoughts." He grinned toward Grace. "On the other hand -- do I get a kiss? For old times' sake?"

Sam laughed. "Just a kiss, huh. Now that's mildly disappointing."

"I've got to start somewhere."

She leaned forward, her lips slightly parted. The kiss that followed almost sucked the air out of her lungs. His hand on the back of her neck, she tasted his tongue on her own, feeling the blood rush to her face.

Oh God, I really missed this!

Grace's look was a mix of shock and disapproval. "Yuck. I will pray for both of you."

"Thanks, I appreciate it," Mika said, clearly amused. "If I'm not allowed to come in, I'll borrow your roommate for a bit if you don't mind."

"Whatever."

He stepped into the hallway to make space, waiting for Sam to close the door behind her. She grabbed him by the arm and pulled him toward the common area.

"Hey," he said, "was that Jesus on the wall?"

"Yep. I'm thinking of balancing him out with a Waddle and Riot poster. Maybe Sinful Slave Sisters -- a dick and two pairs of naked boobs should do it."

Mika chuckled. "Be careful. You've got to live with her for a while. I wouldn't get into a full-scale war before orientation has even started."

"I guess you're right." Sam sighed. "I'm already jealous of your roommate. I've never met him, but Antoine seems like a decent guy."

"He is. Always clears out when I have a girl over." He chuckled when he saw the smile freeze on her face. "The last time it happened was a year ago. You were there."

Sam exhaled. "Sorry, it's none of my business. It's not like we're together or anything."

He smiled and gave her a kiss on the cheek. "If you're up for it, I would really like to change that. With a cutie like you, it's only a matter of time until someone else tries to snatch you up."

"So you're saying I have other options?" she asked, twirling a strand of hair between her fingers. "I hadn't even considered that."

"Lots. You'll have to hold the guys off with a stick."

She giggled. "Why don't you ask Antoine to give us some privacy tonight? So you can stake your claim?"

Chapter 2

Things were a bit tense between her and Grace, so Sam spent most of the afternoon exploring campus and sending reassuring messages to her parents. After a shower and a quick snack for dinner, she made her way to Mika's dorm, feeling a nervous flutter in her stomach. When she knocked, the door opened within seconds.

There it was again, that shy smile she had first seen at the Serenity Suites, the one she had found irresistible. His cologne smelled fresh, and he had changed into a crisp white shirt and a new pair of jeans.

"Looking sharp, I'm very impressed," she said after a long kiss on the doorstep. "You've been waiting for me, huh?"

"You have no idea how much."

She dropped her handbag on Antoine's bed and glanced around the spotless, neatly organized room. "You don't have to clean up on my behalf. I won't flee because of a stray sock."

"I won't take that risk. You seem like the neat type."

"You clearly haven't seen the inside of my bag."

He opened the top drawer of his nightstand. "Despite all the cleaning, I managed to pick up condoms. I mean, I wouldn't presume. Just in case things develop in a certain direction."

Sam giggled. "I don't know. Maybe we'll just sit on the bed, holding hands? That would make my roommate proud. And my parents."

"Hey, I'm up for anything. You know that."

"Nah, we can hold hands after. I've been wet all afternoon, thinking of this." She pulled the T-shirt over her head and tossed it on the chair, then unclasped her bra. When her breasts sprang free, his eyes immediately went to the gleaming silver rings piercing her nipples.

"That's not how I remember them," he said, his eyes glued to her new jewelry.

"I got them done at home, two towns over," she said, smiling at him as she played with her rings. Tugging at them never failed to stiffen her nipples. "I had to make sure my parents wouldn't find out. Mom didn't even want me to have earrings. The next one will be further down, but I have to save some money first. This stuff isn't cheap, and it takes months to heal."

"So you're going for the navel, huh."

Sam laughed. "I haven't even considered that." She pushed her breasts up with his hands, standing still as he gently examined the piercings. "Do you like them?"

"Oh, I do."

He swallowed, and when she glanced down, she saw that his pants were getting tight. She waited as he unbuttoned his shirt and draped it over the back of his office chair.

"I want to get little bells," she said as he unbuckled his belt. "So you can make it ring when we do it. But first I want to move to a slightly larger gauge."

"So, you're still on a mission to try everything?"

"Obviously, studying is my first priority. But yeah, I've made a list."

He laughed. "Not leaving anything to chance, huh? So what's on that list?"

"I'll tell you when I'm ready." She pushed him back onto the bed. "Some of that stuff is so naughty that I can't even talk about it. But if there's something you wanna try -- different positions, toys perhaps -- let me know, okay? You've seen me in a onesie and a diaper. I'm ready to experiment."

"Right now, the only thing I can think about is getting your pants off."

"That can be arranged."

With a mischievous grin, she kicked off her shoes and pushed down her jeans, then turned around and bent over, slowly lowering her lacy black panties. He sat on the bed, already naked, clutching the edge of the mattress as he watched her every move.

At least I'm not the only one looking flushed.

"I practiced a lot at home in front of the mirror, but I messed up," she said, feeling her heart thumping against her ribs. "I got overexcited and took off my bra too soon. That's not how a strip's supposed to work."

"Honestly, I couldn't care less." He reached out a hand. "Come here, babe."

"Not yet." She turned around, taking a sniff of her panties before tossing them to him. "See? I changed an hour ago, and they're basically soaked again." As he examined the moist underwear, she seductively ran her fingers along her labia. "Shaved now, not just trimmed. Wouldn't want you to get hair in your mouth."

He grinned. "Message received."

"But not now. I really don't need foreplay tonight." She knelt down in front of him and reached for his erect dick. "Did you watch the movies I sent you?"

***

The next day, the first day of orientation, Sam spent meeting the other freshmen, running around campus, and signing up for classes. When she finally sat down in the central cafeteria to have lunch with a group of fellow medical students, her feet hurt and she had a mild headache.

From the corner of her eye, she watched Grace and her group engaged in lively conversation, all of them wearing the same kind of light gray pullover. Sam shuddered -- there was a promise ring on every finger.

I guess that's the Jesus squad. Talk about missed opportunities.

They sat with their backs straight, looking proper and organized. Sam shifted in her plastic chair, feeling a dull ache in her own lower back -- a souvenir from the countless positions she'd practiced last night. Once again, she felt her nipples harden.

If I told them what we did, they'd start a group prayer just for us.

After devouring her slice of greasy pepperoni pizza, Sam picked up her phone and typed a message to Mika. "I really enjoyed last night. Got time for a call?"

Instead of an answer, the phone rang immediately.

"Hey, Sam. So did I -- thanks for coming over. What's up?"

"I suck as a girlfriend." She tucked her phone between her cheek and shoulder as she returned her tray. "I completely forgot to tell you that Janie and Stella invited me to dinner tonight, and I wanted to ask if you'd like to join. Unless you think that's weird -- I mean, them being your bosses and all."

He paused. "Would I have to dress up, or something?"

"Do you have a suit and a tie?"

"I guess."

Sam laughed, almost dropping her phone. "I'm joking. It's just a family dinner; you can wear whatever you want. Stella's an amazing cook, by the way. You remember that nice big bed in the guest room? Bring a toothbrush. We'd be staying the night."

Chapter 3

Sam stuffed her toothbrush, toothpaste, and makeup kit into her handbag and took a final look in the mirror. After running a brush through her hair, she applied a bit of extra eyeliner, then blew a kiss at her image. The dress showed just enough cleavage to be interesting, but wouldn't draw too much attention.

"Going out?" Grace asked when Sam emerged from the tiny bathroom. "Again?"

"What do you mean, again? I spent a few hours at Mika's yesterday. I was back well before midnight."

Grace set down her book and glanced over. "You forgot your bra."

Sam let out a mock gasp, looking down at herself. "Oh my God! I knew there was something missing."

"Very funny," Grace said, her face turning into a disapproving frown. "And I wish you wouldn't take the Lord's name in vain."

"Okay." Sam reached into her closet for an extra pair of panties and socks. "You can have the room for Bible study, to light some of your horrible scented candles, or whatever. I'll be back tomorrow."

"Wait a minute. Is that...?" Grace closed the book and walked over. "Are those...?" She vaguely gestured in the direction of Sam's breasts. "Oh my Gosh!"

"Nipple piercings, yup." Sam pushed down her neckline to show her bare right breast. "Beautiful, isn't it?" She brushed over her nipple, feeling it instantly stiffen in response to her touch and the cool air of the room. "It makes them a lot more sensitive."

"Oh my Gosh," Grace repeated, her eyes wide with shock. "That is so...!"

Sam rearranged her cleavage, then crossed her arms. "Grace, I want us to get along. I really do. But how I dress or how I spend my time, that's none of your business. I've had enough of that with my parents."

Grace closed her eyes and sighed. "I'm just worried. All this partying--"

"The semester hasn't even started, and I'm not partying. I don't even like being around large groups of people." Sam gnawed on her lower lip. "Look, I don't see the appeal of... whatever it is you're doing, but it doesn't matter. If it works for you, keep doing it."

"I know it's none of my business, but--" Grace stopped when she felt Sam's glare. "Never mind."

Sam zipped up her handbag. "Good. I'm having dinner with my aunts, by the way. I might even bring you some of Aunt Janie's famous Amaretti cookies. Enjoy your evening, okay?"

***

When she picked up Mika at his dorm, he had a small backpack slung over his shoulder and wore chinos, a pressed white shirt, and dress shoes. It was likely the same shirt as last night, which made sense -- he had only worn it for two minutes.

"Wow, Sam, you look beautiful."

"Looking pretty sharp yourself," she said, her hands on his hips. "I really like your cologne. And you polished your shoes."

"Of course. Wouldn't wanna embarrass my girl."

She gave him a kiss. "That's the spirit. Come on, we can still catch the five-seventeen."

On the forty-minute subway ride, she felt slightly self-conscious in her flimsy dress, but nobody paid her any mind. Everybody was staring at their phones, oblivious to the world around them. She clutched Mika's hand, counting down the stations in her head.

Finally up on the thirty-first floor of Janie and Stella's apartment building, she smoothed down her dress and rang the doorbell.

Janie opened the door, wearing a checkered apron. "Hey guys! Thanks for coming."

For a fraction of a second, she felt her aunt's eyes drift downward, to where her piercings glinted under the fabric. With a knowing smile on her lips, Janie pulled her into a hug.

"You look nice, sweetie. And you too, Mika.

"Thanks, Auntie."

"Come in, you two," Janie said, stepping aside. "Don't worry, Stella's cooking. I did my baking this afternoon, and now I'm just assisting."

"Smells amazing," Mika said after he got his hug. "What are we having?"

"Stella's making Ossobuco. Braised veal shanks with vegetables, white wine, and broth. It's one of her dad's recipes. You'll love it."

They dropped off Sam's bag and Mika's backpack in the guest room and joined Stella in the open-plan kitchen. The rich, savory scent of the braised veal filled the room, and a plate with Amaretti cookies stood on the marble countertop. Sam filled glasses of water for herself and Mika from the tap as Janie set the table. She resisted the temptation of the cookies.

Then, the doorbell rang another time.

"We have a surprise guest tonight," Janie said, heading toward the door. "I invited her when I ran into her yesterday. She's super busy, but it looks like she was able to make time."

When Janie returned with the guest, Sam almost dropped her glass. The woman was a bit older than in the movies, but she recognized her immediately. Her long blonde hair was pinned up, and the cleavage of her short, low-cut black dress would undoubtedly cause a spectacle on the subway.

Like in her movies, she moved with the effortless grace of a woman who was used to being the center of attention, seemingly unaware of the way her dress strained against her curves.

"So you're Sam, huh," Quinn said, a playful smile dancing on her lips. She reached out a hand, then opted for a hug instead. "You're every bit as cute as Janie said. Handsome boyfriend, too. If I wasn't a married woman, I'd be seriously tempted."

"I... uh... I'm a big fan," Sam stuttered and, unsure what to do with her hands, she grabbed Mika's sweaty hand. "Mika, too."

He just nodded, staring at his feet.

Quinn laughed, shooting a glance at Janie. "Really? My work isn't exactly mainstream."

"It's... uh... it's super exciting," Sam said. "We watched everything: Anal Antics, Brown Town, Poopy Princess, Diaper Darling, Slave Sisters... and all parts of Waddle and Riot, of course."

"Seems the naughtiness runs in the family," Quinn said. "Good for you, honey. Like I always say: life is too short for boring sex. Do what makes you happy, and screw everyone else."

"Sam's very open-minded," Janie said, taking off her apron. "Do you want some wine, Quinn? We'll eat in five minutes."

"More like ten," Stella said, tasting the sauce. "Hand me the thyme, baby."

Chapter 4

As always when Stella was cooking, the food was delicious. Mika cleaned two plates, plus Sam's leftovers and had now moved on to the Amaretti cookies, answering questions about university.

"I'm starting my third year now," he said between bites. "And now that Sam is here, I'm having the time of my life."

"Young love, so cute," Quinn said with a wink, dipping a cookie into her coffee. "So, how did you guys meet?"

"At the Serenity Suites," Mika said. "I work there as a janitor."

Sam giggled. "The first time he saw me was after a session in Room Four. I was wearing a onesie and this huge diaper. Fortunately, that was after my change. Poopy diapers might have been a deal breaker."

"I wouldn't be so sure." A flush spread on his cheeks. "I've seen a lot of women in full diapers by now and I didn't run. Of course, you were by far the cutest."

"Aww." Sam leaned in for a long kiss.

Stella grinned. "We have diapers here, in case you need them tonight. Janie and I tried lots of different brands when we started our business."

"Another time," Sam said, reaching for Mika's hand. "I already have plans for tonight."

"Just make sure to give Mika a vote, sweetie." Janie reached for a cookie. "If it's what we talked about, then you'll find everything on the dresser. Any additional equipment you need, just let me know."

Mika's head went up. "Equipment?"

"They have straitjackets and cuffs and other cool stuff," Sam said. "But I'd say we'd stick to the basics, if that's okay with you. There's something I've wanted to try for the longest time."

"Did you have a happy change, Sam?" Quinn asked, filling another cup of coffee. "When I was locked up in Hackney Heights, I would have given anything for a vibe."

"I... uh... I have."

Quinn shot her a mischievous glance. "Did you take the vibe before or after the change?"

Sam blushed, playing with her coffee spoon. "Before."

"Coming in a poopy diaper!" Quinn laughed, clapping her hands. "A girl after my own heart. You should come to my club, we're gonna--"

"Uh, Quinn," Janie interrupted. "How did the new movie turn out?"

Sam's head turned sharply. "You're doing movies again?"

"As executive producer," Quinn said with a shrug. "I had a short guest appearance for the fans, but I don't normally work in front of the camera anymore. Bottom Bliss -- super fun and super dirty. If you liked Diaper Darling, you're gonna love that one."

"When will it be out?" Janie asked.

"The promo tour starts at the end of the month, and the movie will be out three weeks later." Quinn whipped out her phone. "I'll send a swag bag your way, honey. Diapers and suppositories, so you can watch the movie in style."

"Suppositories? That's not even on my bucket list."

Janie laughed. "Pop in a couple and try to hold it -- it's interesting."

Quinn glanced at her messages. "Guys, this has been sweet. Thank you so much for having me."

"Anytime," Janie said. "You need to head to the club?"

"Yeah. Can't have my poor husband do it all alone."

***

The sheets in the guest room had a fresh smell of lavender, and there was a small piece of chocolate on each pillow. As Sam grabbed the remote, Mika opened the wrapper and stuffed the chocolate in his mouth.

"It's super hard not to stare at Quinn's boobs, right?" Sam said, selecting Scene Three of Brown Town on the home entertainment system. "With that dress, she must have been causing car crashes on the way."

Mika coughed. "I have no idea what you're talking about."

"It's fine. I'm not into girls, and I couldn't even help myself." She slapped his butt. "You did your best under very difficult circumstances, and I appreciate that."

"Sorry, I'm only human. You'll have to turn off the TV, though, if you want my full and undivided attention."

He glanced at the screen where Quinn was being manhandled by a group of women, her breasts and face already covered by a thick layer of brown. She gasped as her co-star, Marvin the Man, thrust his ridiculously huge cock into her asshole and Filthy Faye opened her bowels directly above her face.

"Don't need inspiration?" Sam asked, an innocent smile on her face. "You were a single guy; you must have watched porn once in a while."

"I... uh... I have, but I don't need it when I'm with you."

Sam sat down on the bed and switched off the TV. "Suit yourself. By the way, I have the keys to this place. In case I need a quiet place to study."

He grinned. "Study what, exactly?"

"A wide range of topics come to mind." She pulled out her panties from under her dress and threw them at him. "Wet panties are becoming a real problem lately. It's good I brought an extra pair."

"I didn't even do anything. Must have been the dinner conversation."

"Yeah, must have." Sam grinned. "Couldn't have been you, rubbing my thighs under the table. If the food wasn't so good, I would have grabbed you and cut dinner short."

"That would have been a shame. Stella is an amazing cook, and when do you get to see a porn star in real life?"

One? Sam thought, but just nodded. She took her toothbrush, toothpaste, socks, and panties out of her handbag and set it all on the dresser. He sat down on the bed and moved the bag aside.

"Wow, that's heavy. I once read that a girl's handbag is the last mystery of humanity."

"Yeah? It's not all that exciting."

She turned the bag and dumped its contents on the bed. Mika stared at the growing pile: a set of keys, loose change and receipts, tampons, a granola bar, chewing gum, a nail file, half a dozen loyalty cards, a hair brush, a whistle, tissues, a small yellow rubber duck, lip balm, a tube of lube, a lone gummy bear, two boxes of condoms, a phone charger with a rolled-up cable, a battered makeup set, pepper spray, and her emergency vibrator.

"I threw out some stuff before I moved here," she said, popping the red gummy bear in her mouth. "These are just the bare essentials."

He grinned. "I get the pepper spray and the whistle, but why do you have a rubber duck?"

"That's Harvey; he brings me luck." She giggled, taking the duck out of his hand. "I can't believe that's what you ask about. I mean, I've got a vibe and two boxes of condoms. My mom would say that's pretty slutty."

"Nah, you're just a girl scout. Always prepared."

"I am." She leaned in for a long kiss, almost swallowing the gummy bear. "Oh, and sometimes there's a butt plug in there."

"Yeah? Why only sometimes?"

"Because right now it's where it belongs."

He turned his head, curiosity piqued. "You mean...?"

"Yep. And there's just one reason why I'd take it out."

"For going to the bathroom."

Sam laughed, stuffing the assortment of junk back into her bag. "Okay, two reasons." She held up the second box of condoms. "God, do I really have to spell it out?"

"No, I think I got it."

"I prepared for this all year," she said, grabbing his belt. "Stella gave me trainer plugs and detailed instructions, and I have a dildo that's more or less your size. I think I'm ready." She handed him the condoms, her heart racing. "Ever done this to a girl?"

"Can't say I have," he said, then added quickly: "But I'm all about experimenting."

"Good." She pulled her dress over her head. "I cleaned myself out, to make sure this doesn't turn into a fan sequel to Brown Town. It's extremely unlikely that I'll get you dirty, but we have the condom, right?"

"Right." He glanced at the stack of towels, the bottle of lube, and the tissues on the dresser and grinned. "I'm getting the impression that I'm the last one you're telling about your plans for the night."

Oh God, it's finally happening.

Instead of an answer, she turned around and bent over. It took a pull at the base and a push until the wide body of the plug slid out. Mika watched the whole operation with bated breath.

"That's the largest one I've got," Sam said casually, content that the plug was clean. "This is the point where you should get undressed, baby."

"No foreplay?"

Foreplay?! I want a dick up my ass!

Sam exhaled. "We can do that when you're ready for round two." She squeezed lube out of the bottle, rubbing it around her anus. With growing impatience, she watched him undress and slip on a condom.

"You're absolutely sure?" he asked, stepping behind her as she knelt on the bed and spread her butt cheeks with her hands. "I don't want to hurt you."

She took a deep breath. "Baby, I love that you're being so nice about it, but you're really testing my patience. I've been waiting for this for a year, plus two hours at dinner tonight. Could you, pretty please, stick your dick into my ass?"

Chapter 5

With her fists clenched and her face on the sheets, Sam arched her back to meet Mika's increasingly powerful thrusts. She glanced over to the dresser where Harvey the Duck watched the scene from a stack of towels, sitting between her little pink vibrator and the half-empty bottle of lube. She blew him a kiss.

See, Harvey? That's hole number three. Grace would probably faint -- and so would Dad.

Despite the plug, a slightly longer warmup would have been advisable, but the pain was bearable, and it would fade after a few minutes. There was no way she'd stop now.

"Oh God," she groaned, "this is the sluttiest thing I've done in my life. I can't believe I have a real dick inside my ass."

Mika chuckled, pausing for a moment. "Is it everything you hoped for?"

"It makes me feel like a porn star. It's not dirty or anything?"

"Nope, still clean."

"Good." Sam reached for her clit that was already poking out of its hood. "You can go harder than that. Back home, I spent a lot of time in my room with the door locked."

"Practicing, huh?"

"More like training for extra credit. Why do you think I can ride you like that? I suction-cupped a dildo to a chair to strengthen my quads, glutes, and inner thighs. It's my porn star workout."

Mika laughed. "Sam, you really are one of a kind. But I'm not sure I can hold back much longer. This has been on my bucket list too, you know."

"Just come when you're ready. I'll finish myself off with the vibe." She raised her head from the bed. "If you wanna see what it's like, I could return the favor. Like Quinn did to Marvin in Rear-End Revelations. I'm sure Janie and Stella would lend us a strap-on."

He grinned. "Maybe another time."

"Right. We'd have to start with plugs first. Just say the word."

***

Sam woke at half past eight the next morning with a dull but not unpleasant ache in her lower back. Mika was already sitting in bed, reading on his phone while a talk show was playing on the TV with the sound off.

"Good morning, porn star," he whispered, brushing a strand of hair out of her face.

"Morning." Sam sat up, wiping her gummy eyes. "Thanks for last night."

He grinned. "Always happy to help on your projects. Wanna have some breakfast?"

Sam yawned. "There won't be breakfast before ten. My aunts like to sleep in." She yawned again. "God, I wish it could always be like this. Feels like the calm before the storm."

"Before the semester starts, you mean?"

"Yeah. That's why I'm cramming in as much fun as I can." With a sigh, she reached for Harvey on the nightstand and regarded the little rubber duck from all sides. "Honestly, I'm a bit worried. What if I'm not good enough?"

Mika took her hand. "Hey, the first semester's always intense. But if I know anything about you, it's that you're smart and goal-oriented. I have a feeling you're going to do great."

"You think?"

"Yep."

She set Harvey down and glanced at the TV, then back at Mika. The unshaved, disheveled look suited him well. She shot him a mischievous grin, looking down on her bare breasts. "Unless you wanna watch that show, I'd like to raid the toy closet if you're up for it."

He grinned. "As long as it doesn't involve strap-ons, I'm game."

Sam threw the blanket aside and jumped out of bed. "Don't go anywhere. Bathroom first, then I'll see what they have."

A few minutes later, after a trip to the bathroom and to the closet in the hall, she returned with a white canvas straitjacket and a large neon green butt plug from Stella's professional series.

Mika whistled. "So it's Waddle and Riot time, huh."

"For the straitjacket, yes. But there were no plugs in Waddle and Riot. That's more like Backdoor Babes or Anal Antics."

"True. But it looks huge. Do you think you can take it?"

"Only one way to find out. And now help me with that thing, please. Make it nice and tight."

Getting into the straitjacket was a rather simple process. Standing with her arms stretched out, Mika helped her into the jacket. She waited until he had closed the buckles behind her back, then crossed her arms and let him fasten the arm straps as well.

"They have another one with zippers in front," Sam said as Mika tightened the straps. "Very nice in case you want to play with my boobs. But it must be in the bedroom."

He grinned. "Now you're at my mercy. Just one more buckle..."

"No, don't close the crotch strap." Sam nodded toward the windowsill where she had put Stella's plug. "Let's put it in."

"You want out again?" Mika asked, reaching for the straitjacket's buckle.

"No, no, you do it."

"You want me to push that huge thing in?"

She struggled to turn around on the bed, but managed with some help. "It's not like you never pushed anything in there," she said. "Just don't skimp on the lube."

"Even the base of that thing is wider than what I pushed in."

"It'll fit. A bit of pain is okay; I'll tell you if it gets too much."

He shrugged. "Okay, Backdoor Babe. It's your butt, I guess."

The tip of the lubed-up plug slid in without issue, but the more its wide body stretched Sam's sphincter, the more it hurt. She winced, taking short, shallow breaths.

"Ow, ow, ow. Slowly, please." She paused, shooting him an annoyed glare. "I said slowly, not pull it out."

"Yes, ma'am."

It took half a dozen more attempts with a lot of back and forth until the plug's widest part finally slipped in. Mika had been right -- the base of that monster held her sphincter open, the muscle twitching as it tried and failed to close.

"God, I'm stuffed like a turkey. Getting it out will be a bitch." Sam exhaled, trying to get used to the added pressure and her propped-open ass. "Now get the vibe and make me come."

When he didn't react, she turned, but he just shook his head. "I don't think so."

Dumbfounded, she watched him sit back on the bed and reach for the remote. "What do you mean?"

"I watched all the movies and read all the articles you sent me. What you're doing is called 'topping from the bottom' -- and that's not how it's supposed to work."

"Please? I come so much harder when I've got something back there! I'll suck your dick."

"You sucked it twice last night. I'm good. You can either use your safeword and end the scene, or watch some TV with me. But the sub's not supposed to boss me around."

Sam swallowed. "I'm bossy, huh."

"You like to be in charge," he said, giving her a kiss on her head.

"That's true." She sat back pondering for a moment, then sighed. "I never asked what it is that you want, did I?"

Mika grinned. "Nope. But thanks for taking me along on this wild ride of yours."

"I'm so sorry! I really have to be more careful." She sighed and closed her eyes. "Am I screwing things up between us?"

"Relax, it's all good, babe."

"I'll do better, I swear." She leaned her head against his shoulder. "You're my first real boyfriend, and I'm still figuring things out. Is there anything you'd like to do? Whatever it is, I'll do my best to make it happen."

"I'm actually enjoying myself, but there's one thing."

"Tell me."

"I want a proper first date. We kind of skipped that part."

***

When it was finally time for breakfast, Sam sat at the dinner table in a straitjacket and a bulky white diaper. The red ball gag in her mouth, another piece of treasure from the closet, had her drooling.

"Comfortable, sweetie?" Janie asked as Mika unbuckled the gag. "This is actually the straitjacket I rescued from the trash in Hackney Heights. I washed and mended it. It's still one of my favorites."

Sam worked her numb jaw, swallowing a mouthful of saliva. "Yeah, it's nice. But I should have worn a bra. The fabric's chafing my nipples."

"Better sit still, then. Just no pooping at the breakfast table, please."

"I would never, Auntie!"

Mika grinned. "It's not like she could."

"I'm plugged," Sam said, squirming in her seat. "The first one from the professional series. I've never felt this full in my life."

That explains the waddle," Stella said, setting a plate of pancakes on the table. "I guess your boyfriend will have to feed you. Enjoy!"

Chapter 6

When Sam arrived at Mika's dorm room ten minutes early, wearing a borrowed red dress and heels from Stella, the door stood open and his roommate Antoine was sitting in his chair, picking out a melody on his guitar. He was a lanky kid in a black heavy metal T-shirt with curly dark hair and a goatee.

"So you're Antoine," Sam said, smiling at him. "The man, the myth, the legend. I was wondering if you even existed."

"And you're Sam. The reason why Mika's skipping band practice." He grinned, stroking his goatee like an arch-villain. "So we finally meet."

"I didn't know Mika already had plans. Tomorrow would have worked just as well. We have to work on our communication."

"Don't sweat it. Anybody in the band would bail for a date with you."

Sam laughed. "I think you guys are doing it wrong. You're supposed to have hordes of groupies who follow you everywhere."

"Groupies?" Antoine scoffed. "I wish. We haven't even had our first gig yet, and honestly, we're not ready for an audience. Anyway -- do you need the room?"

"No, no, we're going out. But thanks for being so understanding." She paused, then reached into her handbag and pulled out a small prep container. "I completely forgot. I brought you cookies as a little thank you."

"Oh, nice! Much appreciated."

"Give me a sec," came Mika's voice from behind the closed bathroom door. "Still struggling with the tie. It looked easier in the video."

"I would have helped," Antoine said, back to picking his guitar, "but I've never worn a tie in my life. And I don't plan to."

"I have a useless younger brother; I can do it," Sam said. "Not that you're useless," she added quickly. "But he's all thumbs. It's a miracle he can tie his shoes."

When Mika emerged from the bathroom, he wore a charcoal two-button suit with a white shirt, a slim leather belt, and black shoes. The jacket was a little tight around the shoulders, and his patterned silk tie hung loosely around his neck.

Sam whistled in admiration. "Not bad. You look like you're about to get married."

"And you look pretty nice yourself. This is actually my wedding suit, from when my mom and my stepdad got married a couple of years ago. I hate to admit it, but last time, Mom helped me with the tie."

"How about you ditch the tie and I lose the heels?"

"Oh, thank God."

Sam unzipped her bag and produced a pair of ballet flats. "Stella wore these heels the entire day at my cousin's wedding. I have no idea how she did it. Less than two hundred meters and my feet are already killing me."

Mika grinned. "So now there's extra shoes in the bag, huh?"

"You know I'm a girl scout." With a sigh, she stepped out of her heels. "I don't mind a little punishment for my misdeeds, but this feels like a hard limit. I'm safe-wording out."

"So, what do you have planned?" Mika asked, tossing the tie on the bed.

"I've reserved a table at Ricardo's. We'll have a fancy dinner that'll likely bankrupt us and hopefully have a nice conversation. Afterward, you get a kiss on the cheek, and I'll say goodnight."

"Just a kiss, huh? You're really going for the first date experience."

Sam smirked, grabbing his hand. "You wanted a first date, so you'll get one. I mean, I'm a good girl. I have to consider my reputation."

***

At half past ten, by the time Sam came back to the dorm, Grace was already fast asleep. On tiptoes, she headed for the bathroom, quickly brushed her teeth, and got ready for bed. Still a bit tipsy from the wine, she crawled under the covers.

A goodnight kiss, and that's it? What was I even thinking?

Her handbag sat on the floor next to the bed, just in reach, so she pulled it closer and reached inside, rummaging around until she found her vibrator. As the little toy hummed softly under the blanket, she bit her lip, trying to keep quiet.

"Is that you, Sam?" Grace asked, turning in bed. "What are you doing?"

"Go back to sleep. I'm having a private moment, okay?"

"What do you mean?" Grace switched on the light on her nightstand. "What's that sound?"

"Oh, come on!" Sam squinted against the sudden glare of the lamp. She groaned and switched off the vibe. "Don't tell me you don't know what it is. How about you put in earplugs and give me ten minutes?"

Grace stared over. It took a few moments for the realization to hit. "Sam, are you--"

"None of your business. Don't tell me you've never done it."

"It's a sin! I mean, it's never mentioned in Bible study, but I think it is."

Sam squeezed her eyes shut. There was no way she would get over the edge with Grace staring at her. She placed the vibrator on the nightstand and sighed. "Fine. You've saved my soul, now go back to sleep."

Grace craned her neck. "Is that..."

"A vibrator, yup."

"But it's not shaped like a... you know."

"Why would it be shaped like a dick? It's not a dildo -- you don't shove it in. You press it against your clit and let it do its thing. You've honestly never seen one?"

Instead of an answer, Grace turned off the light. "Good night, Sam."

"Good night. Girl, you gotta learn how to relax."

Chapter 7

Orientation week came and went and the semester started in earnest. Between lectures, studying, and her job at the Serenity Suites -- Tuesday and Thursday nights, with the occasional Saturday morning -- there was barely enough time to see Mika. Most days, she passed out the moment her head hit the pillow.

Two months into the semester, on a fairly regular Thursday night at the Suites, Sam walked over to the plate glass window and looked out at the city below. She had changed thirteen guests so far, liberally applying the industrial-strength vibrator, and by now, the diaper pail in the changing room was filled to the brim.

Room Three was asylum-themed, but while at work, straitjackets and leg restraints were out of the question. Like the majority of the attendants, she had opted for a short nurse's uniform with a diaper underneath. Already swollen from a couple of liters of urine, it sagged well below the hem of her uniform.

Oh God, Janie wasn't kidding. That stuff sure is interesting.

Two suppositories from Quinn's swag bag, popped in just fifteen minutes earlier, were doing their job inside her bowels. The pressure was intense, and as much as she clenched, it was a losing game. Seven thirty -- if he stuck to his usual schedule, Mika would be here any minute to empty the bin. She couldn't wait any longer. With a devious grin, she pressed her padded crotch against the glass.

The moment she relaxed her sphincter, the effect was immediate and explosive, filling the seat of her diaper with a load of warm brown mush. She let out a sigh of relief, letting the diaper absorb another stream of pee as she inhaled the stench.

He's late. It's his own fault that he missed it.

She was just about to refill the array of oversized baby bottles when Mika entered the room, pushing his janitorial cart. "Hey, Sam. Everything good in here?"

"Yes." She walked over to him and gave him a kiss on the lips. "I was just about to make my rounds and feed my charges."

He sniffed. "Smells like you could use a change yourself." He grabbed her diapered butt with both hands. "Is that for my benefit?"

"For both of us," she said, blushing slightly. She put her hands on his, kissing him as she applied pressure to make the mess inside squish and spread. "Stella promised me a happy change at the end of the shift."

"Why wait?" he asked, nodding toward the vibrator on the changing table. "I hear you don't even have to take anything off with this thing."

Sam giggled. "That would be against the rules. I'm a good girl, you know."

"Full diaper notwithstanding." He reached between her legs and started rubbing. "Like Quinn in Waddle and Riot, huh?"

"Without the straitjacket. But just like Quinn, I won't be able to come, no matter how hard you rub. I'm too well-padded."

"You should have thought that through, I guess."

"Oh, I have." She smirked as she reached between his legs. "When it's all out, we can fill my butt with something else tonight. I can sleep in tomorrow. My lecture at eight was cancelled."

"I like the way you think."

"But before we can play, there's plenty left that I have to get out. Watch." Another push added to the warm contents of her diaper. She shot him a seductive smile, licking her lips. "Do you think it's gross?"

"Sam, you can make just about anything sexy. I've watched every single movie you sent me. I'm warming up to the whole idea."

"Good. Because I'll get back to my bucket list when things have settled down a little."

She opened the diaper pail and pulled out the full plastic bag, knotting it. Mika took it out of her hands and tossed it onto his cart with the others. He handed her an empty trash bag.

"I'll ask Antoine to clear out," he said. "I'll call you when I'm home."

"Obviously, I need a shower first, but I'll be there. Squeaky clean and up for anything."

He adjusted his pants. "I can hardly wait."

"You'll have to," she said, patting her backside. "That's the downside of pooping myself. It's not like we can duck into the restroom and get a head start."

"Oh, there's something we could do."

"You bad boy!" Sam pulled him closer and whispered, "You want me down on my knees to suck your dick? While I'm all dirty and disgusting? Does that turn you on?"

"Of course not," he said, trying to keep a straight face. "As you know, I'm a sophisticated gentleman who totally knows how to tie a tie."

She laughed. "I'll find you after I've made my rounds. You can already think of what you're gonna do for me in return."

"I might pick up some flowers on the way home."

"Flowers?" Sam put her hand on his shoulders and looked him straight in the eye. "I'm a practical person. Take me to dinner or get me some chocolates."

Chapter 8

When it was finally time for her break, Sam sent a quick message to Mika and crossed the lobby toward the staff restrooms. A smelly cloud followed her wherever she went, but at the Suites, she was in good company. Lara, the receptionist, had taken her own bathroom breaks standing behind her desk, and the smell of baby powder had mixed with a much more pungent aroma -- one the ventilation struggled to clear.

"Sam, wait a sec," Lara said, holding up a small gift bag. "Someone left this for you. Handsome older guy. Do you have a secret admirer?"

Sam stared at the bag, then she giggled. "That must have been Ralph -- Quinn's husband. I talked to her the other day, and she said she'd send something my way. Thanks, Lara!"

In the hallway next to the offices, she glanced over her shoulder to make sure the coast was clear, then entered the men's room. Mika was already there, standing at the sink. He had brought a mop and a bucket.

"You're not fooling anyone," Sam said as he leaned the mop against the wall.

He grinned. "Actually, I'm really going to mop the floor when we're done." He kept his hands at his sides as Sam unbuckled his belt. "What's in the bag?"

"Oh, that's for a little project of mine."

Mika raised his eyebrow. "Another project? Anything I should know?"

"It's a birthday gift for Grace. Boyfriend or not, every girl needs a vibe, right? In case you find yourself in bed without company."

"A vibe for Grace?" Mika chuckled. "I can see an emergency prayer circle coming up. Maybe even an exorcism."

"Oh, she's definitely interested. She doesn't put in earplugs anymore when I use mine at night. That's what I call progress."

"Tell me how it went."

Sam reached into the bag. The vibrator was the same model Janie had given her a year ago -- a high-quality rechargeable toy with lots of different patterns and plenty of battery capacity.

"Huh, there's an envelope." She opened it and held up its contents. "Two VIP tickets for Quinn's club. Wow." She stuffed the tickets back into the envelope and set it aside. "But let's not get distracted. You said you wanted your dick sucked, right?"

"I can't believe you're really doing this."

"I've done it before. Plenty of times."

"Not like this, and not at work. Wanna go into a stall?"

Sam hesitated, then shook her head. "You're the only guy on staff. Unless you've invited another girl here, we should be fine."

"Another girl?" He laughed. "No other girl has ever done this for me."

"Really? I thought it was a pretty standard thing in a relationship. Maybe not at work, and probably not in a full diaper, but nothing out of the ordinary."

He grinned. "You watch too much porn, Sam."

"Maybe." She shrugged before getting down on her knees. "Well, you seem to enjoy it, and I like getting you off. Gives me a sense of accomplishment. So, do you want to make conversation or have your dick sucked? For obvious reasons, I can't do both."

He quickly dropped his pants and boxers. "Do you even have to ask?"

She grabbed his cock, licking along his recently shaved balls, kissing his tip. The taste of a day's sweat didn't deter her. He didn't move, leaning against the sink as she licked and rubbed.

Interesting. I'm dirty and smelly and he still gets hard.

Feeling her own heart beat faster, she took him into her mouth, gently rubbing his balls as her head bobbed up and down. When she reached for her crotch, she found it well-padded and inaccessible.

"Force of habit," she giggled, fighting the urge to reach inside and rub herself.

"Doesn't feel fair that I can't get you off. Or rather, that you can't do it yourself."

"I guess I'll have to wait a bit longer." She glanced up, smirking. "Wanna join me later and watch?"

***

Sam lay on the changing table with her legs spread, staring at the ceiling as Stella held the mains-powered vibrator against the front of her diaper. It was the end of the shift, and all clients had been changed, freed of their straitjackets and other restraints, and sent home in a state of orgasmic bliss.

The powerful growling vibrations traveled through the thick padding as if it was nothing. With Mika watching from the door, Sam tried to hold back, but there was no resisting this raw, unbridled power. The massager took less than a minute to rip a screaming orgasm out of her.

"Nice one, huh?" Stella said, setting the vibe aside.

Sam took short shallow breaths. "Oh God, yes."

Her legs still twitching uncontrollably, she glanced over to Mika and blew him a kiss. Despite her earlier work in the men's room, the tent in his pants clearly showed that he was ready for more. He'd have to wait. There was one final diaper to change.

"Give us the room, lover boy," Stella said, waving him off. "This is going to get messy."

"No, no, stay," Sam said quickly as Mika turned to leave. "I don't mind."

Stella glanced from Mika to Sam and back again, then she shrugged. "Okay." She ripped the tabs of the diaper open. "Let's see what your girl has done. The way it smells, it's a big one."

He kept standing a couple of steps away. "You're sure you want me to stay?"

"For some of us, humiliation is part of the appeal," Stella said. "Isn't that right, Sam?"

Sam blushed. "Yes."

The moment the diaper was open, the stench intensified. The brown mess had spread across the whole crotch, covering it in a thick layer of brown. After a quick look, Sam dropped her head back on the table. None of her own clients had been this dirty -- not by a long shot.

Stella chuckled. "You didn't just sit in it. What did you do, you dirty little girl?"

"Rubbed myself," Sam whispered. She glanced over to Mika who craned his neck. It didn't look like he was trying to flee.

"Did you get there?"

"No.  But I was really close."

"My, my. Masturbating in your own filth? I should send you home like this to teach you a lesson."

Sam's eyes flew open. "Home? Like this?"

Stella laughed. "I'm kidding." She donned a pair of gloves and grinned at Mika. "Get yourself some gloves, and I'll show you how it's done. Unless you have somewhere else to be."

His face was even redder than Sam's, but he stepped forward. "I guess I'll need some wet wipes, too?"

Chapter 9

It was Saturday morning after a long and exhausting week. With a backpack full of books, clothes, and other necessities slung over her shoulder, Sam stood on the third floor of her dorm, waiting for the elevator to arrive. She checked her handbag one last time: phone, keys, Harvey the duck. Everything else she could borrow from her aunts if necessary.

Fuck. Where's my makeup?

With a sigh, she abandoned the opening elevator and returned to her room. Grace's laptop sat open on her desk, but its owner was nowhere to be seen. She knocked on the bathroom door.

"Grace? Are you in there? I forgot my makeup kit."

"G-give me a minute!" came Grace's panicked voice from behind the door.

Sam stood for a moment and listened. What the hell? That doesn't sound like a toothbrush.

There was a groan, and the humming stopped.

"Sorry!" Sam shouted. "Take your time."

I guess she opened that birthday gift after all.

Stifling a giggle, she sat down on the bed and started typing out a message to Mika. Her finger hovered over the send button, then she deleted it and checked the subway schedule instead. Too late for the nine-seventeen. Plenty of time until the next one, no matter how long Grace needed in the bathroom.

When Grace finally emerged, with her face beet red and one hand hidden behind her back, Sam couldn't help but grin. There was the expected smell of arousal lingering in the bathroom, but it was a small change on her roommate's right hand that immediately caught her eye.

"Uh, Grace, where's your promise ring?"

"I'm taking a break."

Sam grinned. "I didn't know it worked like that. Good for you, though."

"Eff it. I'm sick and tired of waiting for my life to begin."

"Obviously, I'm not judging. My biochemistry exam is coming up, and I'll be staying at my aunts' for the rest of the weekend to study. You'll have all the privacy you need to enjoy yourself, okay?"

"Thanks." Grace gnawed on her lower lip. "Uh... Sam... that guy, your boyfriend's roommate... he's single, right? Do you... do you think you could introduce us?"

"Antoine?" Sam shot her an amused glance. "He's single all right. But he's also a metalhead who loves to smoke weed and go to festivals. Not exactly your scene, is it?"

Grace shrugged, staring at her feet. "I think he's kinda cute."

"Okay, sure," Sam said. She got up from the bed and opened her closet. "But first you gotta lose that pullover. It makes me yawn every time I look at it. How do you like my midnight blue dress, the one I wore last Friday?"

"It's... uh... it's short."

"That's exactly the point." Sam held up the dress against the light. "How about you try it on, and then we'll head over to the guys to say hello?"

Grace swallowed hard. "Now?"

"Sure. And if you want to move fast and invite him over, there are condoms in my bottom desk drawer. Trust me, the guys are less prepared than you'd think."

***

The study session in Janie and Stella's guest room stretched from Saturday morning to late afternoon, only interrupted by sandwiches for lunch and a bowl of ice cream. Lying on a towel on the bed, surrounded by books and notes, she worked her way through the material.

It was half past six when Mika knocked on the door and peeked in. "Hey, babe!"

Sam looked up and grinned. "I came here to study in peace, you know. I've got an exam coming up."

"I know. I would have left you alone, but Janie invited me over for dinner, and she didn't take no for an answer." He sat down on the bed, rubbing her back. "She says you've been cooped up here all day and might need a little distraction."

Sam held up the vibrator. "I'm giving myself one after every chapter."

"She'll be glad to hear. Rewards and incentives are important."

"Plus..." She lifted her skirt, revealing a naked behind with a neon orange plug peeking out between her butt cheeks. "I got the second one from the professional series in. That took some doing."

"Ouch. Isn't that distracting?"

"You get used to it. My sphincter's so stretched out, I don't think there's a dick in the world I couldn't take."

"I hope it doesn't stay that way."

"I take breaks and clench regularly to retain muscle tone. I'll be fine." She looked him over carefully. "Being a good girlfriend, I can tell that someone needs his dick sucked. It would be super annoying if you'd come all this way for nothing."

He laughed. "All this way from the living room, huh? No, it's fine. No more distractions!" He gave her a kiss on her naked buttock and got up. "I'll let you know when dinner's ready."

"Wait, wait, wait."

"Yeah?"

"I... uh... considering how hard I've been studying all day, maybe I do deserve a reward." She closed the book with a thud and turned around. "Give me a moment to get the plug out."

"I thought you like doing it with a plug in."

"It's too big. When I'm this stuffed in the back, there's not enough space in the front. You're an engineer, you should understand the geometry involved."

Mika's grin widened. "You know what? I'll just eat you out."

"About that..." She reached between her legs, then sniffed her fingers. "Ugh. I've reviewed eleven chapters today. I'm super ripe down there."

"I've seen way worse in that area."

Sam smirked. "True, and you've been a real trooper. Stella and I were impressed."

"I like you messy," Mika said, already moving books and notes to the floor to make room. "Spread your legs, babe. I'm gonna drag it out until dinner."

"Make me beg for it?"

He grabbed her legs and pulled her to the edge of the bed. "Oh, I will definitely make you beg."

Chapter 10

Located at the edge of the city, Quinn's club was a converted industrial space. The bar inside was a cozy, dimly lit place, and a little after nine on a Friday night, the room was slowly filling with customers. Sitting on a barstool next to Mika, Sam watched the crowd: men and women clad in leather or latex, people wearing masks and gags, the occasional naked sub on a leash, a beautiful older woman in a straitjacket and a bulky diaper.

Compared to what some of the others wore, her own black latex dress -- Janie's gift and shorter than she'd liked -- was nothing to write home about. She glanced over to the barkeeper. The naked twenty-something woman sported nipple rings with little bells, filling orders and making conversation with patrons.

"It's pretty smart, celebrating before the exam results are in," Mika said, his eyes firmly on the tabletop. He turned the VIP badge dangling from the lanyard around his neck and regarded it from all sides.

Sam giggled. "I survived the exams -- results have nothing to do with it. Besides, I think I did pretty well. I had extensive review sessions after all."

"I know you did. With the second plug from the professional series up your butt."

"The third, actually. Toward the end, I thought I'd need a diaper for real." She downed the last of her tequila shot and shuddered. "Nasty stuff. I don't think I could ever become an alcoholic."

"First time here?" the barkeeper asked.

"It's pretty obvious, huh."

The woman grinned. "Yeah. Your boyfriend seems a bit uncomfortable. There's so many bare tits in the room, and he doesn't even try to catch a glimpse."

"I'm just trying not to stare," Mika said. "That wouldn't be polite."

"This is a sex club," the barkeeper said, making her little bells jingle. "When you come here with your tits out, it's an invitation to admire them. Unless your girl doesn't allow it."

Sam shrugged. "I don't mind. Admire all you want." She glanced at her phone. "But we need the check, please. The competition's going to start in ten minutes."

"You're Quinn's guests; it's all on the house. Good luck with the competition."

"Thanks."

Sam grabbed Mika's hand and dragged him toward the exit. As they crossed the room, a leather-clad couple walked by, the handcuffed and leashed woman one step behind, balancing on a pair of impossibly high heels.

"That's the third one tonight." Mika said, watching them from the corner of his eye. "You don't happen to have a collar and a leash in that bottomless handbag of yours?"

"Nope, but we can do that next time. Janie's got a steel collar with a cylinder lock. I need something I can't take off." She leaned over and whispered, "I've been dripping since we came here. Maybe I should have worn panties."

"Honestly, just seeing you in that dress makes me want to grab you and take you to the nearest restroom."

Sam grinned. "Patience. Besides, they have a dungeon in the basement for that. You could lock me in a cage and do me through the bars."

"Now that's a thought." Mika glanced over his shoulder. "Those little bells the bartender had -- that's what you wanted, right?"

"Remember my birthday's on the thirtieth. Just saying." She took a deep breath. "But first things first. I haven't crossed anything off my bucket list in months"

"You're sure you wanna go ahead with that competition?"

"Not one hundred percent. More like seventy." She grabbed his hand. "Unless you've changed your mind. If you're having second thoughts, I won't do it."

"That's hardly my decision, Sam."

"It is. You're my boyfriend, and that means you get a say."

"Knock yourself out, babe. This is the safest and most discreet way to do it."

Downstairs in the basement, they stopped in front of a red door. Sam held the barcode on her phone under the scanner, and the door buzzed open.

"You can go and see the strippers while I'm at it," she said, holding the door. "You remember the video, right? The stuff they can do on that pole? Super impressive."

"Huh. I've always wanted to see a real life stripper."

"Then go. You have the partner code for the door. Have fun!"

She gave him a peck on the cheek and watched him disappear in the crowd. Inside, the room was tiled and laid out like a bathroom, with half a dozen stalls on the right. Four of them were already occupied. Three women and one man knelt on the floor inside their stalls, working on condom-wrapped cocks stuck through the hole in the wall.

Fuck. I didn't think the stalls would be open in the back.

With sweaty hands, her heart thumping in her chest, she crossed the room to find stall number two.

***

Cocks came in all sizes, and even though her experience was limited to Mika's, the mechanics were familiar and well-rehearsed. She worked off the line outside her stall, sucking each dick without ever seeing its respective owner. Some were polite and thanked her, others just blew their load and left.

As another anonymous cock pulled out from the hole in the booth, spent and already shriveling, Sam sat back on her heels and tossed the used condom in the bin to her left. The pressure from her bladder was getting uncomfortable, but the number on the screen to her right was reassuring: thirteen -- two more than the girl in Stall Four.

I should have worn a diaper. It's not like I'd be the only one.

She hesitated. After a look around, she hiked up her dress and squatted over the drain in the floor. The urine was still splashing into the drain when she heard footsteps behind her.

"How's it going, my sweet little girl scout?" Mika asked, a small bottle of water in his hand. "No time to go to the restroom?"

Sam laughed, wiping off the last drops with a tissue. "Not while I'm winning."

"Having fun, then?"

"It's good I'm so competitive. The first twenty minutes, I was super turned on, but now it's getting a bit tedious. How was the stripper?"

"Super sexy. Acrobatic. But I still prefer you dancing for me."

"You can get that at home. And unlike with the stripper, you're allowed to touch wherever you want." She reached between her legs and started rubbing herself. "Damn, I was so busy, I haven't even come yet. I'm gonna--"

"Don't be a coward, honey," she heard a woman's voice from the other side of the wall. "Are you afraid she's gonna bite? Or that it's a guy?"

"I'm not a guy, and I don't bite," Sam said. "The thirteen before you had no complaints."

"There you have it, Greg. You wanted to try this, now go ahead. I'll wrap you, come on. These little sluts get off on it."

Sam giggled. "Damn right, Greg. Help me win this competition!"

She heard a zipper, and moments later another erect dick was stuck through the hole. She moved forward, grabbing the base and putting the condom-wrapped cock in her mouth. Cradling his hairy balls, she worked on him, pushing him to the back of her throat.

Mika nodded, impressed. "You got pretty good at it.".

"I knew our training would pay off," Sam said, coming up for air. "The deeper I take them, the faster they come. That's how you win this game."

She continued, but the man didn't last long. Less than a minute in, he shot his load into the vanilla-flavored condom. She pulled it off and tossed it into the bin.

"Thanks," came an out-of-breath voice from the other side of the stall.

"You're welcome!" Sam turned to Mika. "Wanna try one of the other girls and give me some pointers if she's good? Maybe not Stall Four. I can't have her get ahead."

"Nah. I think you're perfect. It wouldn't feel right."

"Are you having second thoughts? I can stop."

"No, no, it's kinda hot, seeing you do this."

Sam turned toward him. "I think I could make it even hotter. How about... I never had two guys at the same time. Could you... uh... do me while I win this competition?"

"We've never done it in public."

"It's not in public."

"The stall's open to the backside. There are people walking by."

"That's only the other contestants. Plus partners." She reached around, and when she pushed, her plug popped out. Its tip was dirty, and there were long brown streaks along its body. Careful to not touch the soiled parts, she set it down on the floor.

"That's where you want it?" he asked, unzipping his pants.

"Do you mind the poop? Maybe it's the tequila, but I'm feeling really slutty tonight."

"Nah, it's okay." He took the condom she handed him and ripped open the wrapper. "The lady gets what she wants."

Sam giggled. "The lady brought lubricated condoms, just for cases like these."

"Wait a minute -- isn't that number eleven on your list?"

"Eleven is dirty anal and Four is sex with two men. If another one shows up, that would be two birds with one stone."

Bent over at the waist, her latex dress hiked up, she winced as he slowly pushed his dick home. Grabbing her hips, he settled into a comfortable rhythm.

"Wow," he said. "How full are you back there?"

"I'm so full, I could star in a Brown Town sequel. Please don't stop, okay?" She licked her fingers and reached between her legs. "You're amazing, do you know that? I feel I don't tell you often enough."

He grinned, pushing deeper. "You're pretty great yourself. I'm so glad I met you, babe."

Feverishly working her clit with one hand, she propped the other against the wall to steady herself. Her breath hitched, and a warmth spread from her core. This wouldn't take long

Oh God, this is just like the movies! I'm gonna come with a dirty cock up my ass!

She stopped when she heard the clicking of high heels behind her.

"Ohh, a dirty butt-fuck," Quinn said, standing in the hallway. "Nice! I had my first around that age, and down the rabbit hole I went."

Mika stopped mid-stroke, but Sam pushed her butt toward him. "Keep going, baby." And that's Twenty-Three -- sex with someone watching. "Hey, Quinn! Sorry, I need a couple more minutes."

"Take your time, dear." Quinn whipped out her phone. "Just wanted to let you know that you've won. The other girl dropped out of the race. I'll send you the voucher for our gift shop."

"Thanks." Sam stared at the next hard cock that appeared in front of her. She grabbed it and clenched her sphincter around Mika's. "By the way, my roommate says thank you for the vibe. It took her a while, but she's learned to appreciate it."

"Then I'm glad. She can still have a little fun, even if she wants to stay a virgin."

Sam laughed. "No, no, her virgin days are over. And from what she tells me, her dick sucking skills are much improved."