Change of Plans Pt. 03

Part 3

The next week was the most exhilarating and stressful time of my life. Unfortunately, Mum and Dad decided to hole up at home every day, so the only time Charley and I could continue our secret affair was late at night, after they'd gone to sleep. Three times, we'd quietly gone at it under the covers, hands over each other's mouths and wincing every time the bed creaked or our bare skin slapped together.

That was why I'd been eagerly anticipating today. It was Saturday, and Mum and Dad had told us they were off to a doctor's appointment for something or other. I had kind of stopped listening as soon as I'd got the news that they'd be out of the house.

I did feel a little guilty about dismissing it though, so in the morning I headed down to see them off before they left. I caught them as they were just about to leave, putting on their shoes.

"So, you guys never told me what this appointment is for. It's nothing serious, right?"

"It's fine," my dad said curtly. "Just a consultation."

My stepmum smiled and leaned over to me. "He's going to get a vasectomy," she stage whispered.

Dad shot her a look, and I wrinkled my nose in disgust. "Ugh, come on Mum. He was right, I didn't need to know that."

"My mistake," Mum laughed. "Should have known the men in this household weren't mature enough to talk about something like this."

"Sure, sure," I replied. "But in all seriousness, aren't you guys a bit past the age where this kind of thing is necessary?"

Now it was my stepmum's turn to shoot me a look. "Hey! We're both still young, we're just in our forties! And believe me, you and Charley have been enough of a bother, we don't need to risk getting pregnant with a third."

I froze, though not really because of what she'd actually been talking about. But there were two words in there that sent a shock through my body.

Pregnant and Charley.

Suddenly, all the times I had cum inside her flashed in my mind -- slowly pulling out of her snatch, watching as my seed dripped out, running down her legs. Possibly the hottest thing a guy can ever see. And now, I was realizing, the most irresponsible.

Shit. How had I never considered this? I'd just been so caught up in the consequences of what would happen if people found out that I hadn't even thought about the possibility of this happening.

Charley pregnant. Oh, fuck. That would not be good. Not good at all. It would be pretty fucking hard to hide the fact that Charley was sleeping with someone if she literally had a baby bump. And that's not even thinking about the actual baby. I seriously doubted that it would fit into Charley's plan.

I must have been silent for a little too long, because my Dad noticed. "What's wrong?" He suddenly frowned. "I very much hope you're being smart about your own private life. You must always use protection. You're far too young to be in a situation like that, you have your studies!"

"Oh, yep," I squeaked. "Protection, of course I do. Nothing to worry about." I slowly backed up towards the stairs. "Um... hope everything goes well with your... testicles, or tubes or whatever they do!"

Hoping they'd just brush off how weird I was being, I turned and scampered up the stairs to Charley's room, breathing heavily. Once I heard the front door close, I relaxed. Okay, Luke, calm down. You just need to talk to her like an adult. It's only been two weeks since the first time, it's definitely fine.

I opened the door to find her at her desk, working at her laptop. When she heard me come in, she quickly glanced up but carried on working. "Hey. Was that Mum and Dad leaving?"

"Oh... yeah." I had no idea how to bring up what I was worried about.

She smirked, still focused on the screen. "They tell you about the vasectomy? Crazy, right?"

"Uh-huh." I took a deep breath. "Actually... I wanted to talk to you about that."

She made a face. "Ew. You want to talk about how Dad's getting his tubes tied?"

"No, I... want to talk about you. And me."

"You want to get your tubes tied?" she giggled.

I sighed, exasperated. "No Charley, for god's sake." I decided to just spit it out. "I mean... we've never used a condom or anything. Is there a chance we... might end up with you pregnant?"

"What? Of course not," she scoffed. "I'm on the pill, and I can take a test every once in a while to be safe. We're good."

I suddenly felt like a complete idiot. This was Charley we're talking about -- she was never going to be dumb enough to overlook something of this magnitude. I flopped down on her bed. "Ok. Phew. Not gonna lie, I was kind of shitting myself for a moment."

My relief must have seemed a bit over the top, because she burst out laughing. "Jesus, Luke. Do you not normally think about this? Do I just have a bunch of step nieces and nephews running around out there somewhere?"

Highly unlikely, given that she was the only person I had ever slept with. "Yeah... don't think we have to worry about that."

She must have caught something in my voice, because she finally stopped writing and turned to face me, with a slight look of concern. "Wait. Are you a virgin?"

I frowned. "Did you hit your head?"

She rolled her eyes. "Were a virgin. I mean before me."

There didn't really seem to be any reason to hide it anymore, given everything that we'd done now. I shrugged. "Yes, I was."

"Oh my god," she groaned, resting her head in her hands. "I deflowered my little brother."

I snickered. "Yeah. You're despicable."

"I... I don't understand," she said. "You're at university. You're cute, you're fun to hang out with... how did it never happen?"

"Well, I got close a few times," I replied. "One time I was with a girl and just as we were about to, she told me she had a boyfriend. Another time, I was super drunk and couldn't... get it up. It just never ended up happening."

She paused, thinking about what I'd said. "Then how are you so... good at it?" She eyed me suspiciously.

I'm not gonna lie, hearing that felt pretty amazing. "I am?"

She gave me a look. "Funnily enough, I'm not sleeping with you because of how hot I find guys who are addicted to Fortnite."

I was riding such a massive high after her previous comment that I didn't even bother to correct her about what games I play. "Maybe you just bring out the best in me."

She snorted and turned her attention back to her laptop. "Nice."

But I didn't feel like leaving just yet.

I slowly walked over, and gently rubbed both my hands over her shoulders, making her jump a little. Her eyes never left her laptop, but she breathed out hard as I ran my hands down to her waist. "Luke... I'm busy."

"Seriously? Mum and Dad are finally both out the house. Besides, it feels like such a shame to leave it like this. You know, since I'm so good at it."

"Ten seconds later and I already regret saying that."

"No takebacks."

"Ugh." She slammed her laptop shut. "If I'm late sorting out my renter's insurance, it's on you."

"That's a risk I'm willing to take," I replied cheekily.

"Jerk." She got up and shoved me back onto the bed, before quickly unbuttoning her shirt and climbing onto my lap. Taking my face with both hands, she leaned down and kissed me hard, plunging her tongue into mouth.

After a few moments, I reached around to her back and unhooking her bra, before breaking the kiss and burying my face in her perky tits. I latched onto the right side, twirling my tongue around and sucking on her rigid nipple.

Charley gasped. "Agh... you fucking perv." She reached down and began to pull my shirt off of me, and I pulled back from her boob with a groan of annoyance as I let her take it all the way off.

Now both of us were half-naked, I picked her up and dropped her on her back, quickly pulling down my trousers to allow my erection to burst free, while she scrambled out of her jeans and panties. Once we were both in our birthday suits, I clambered on top of her and kissed her again, while bringing my hand down to plunge two fingers into her already moist pussy.

She moaned into my mouth as I fingered her, feeling the ridges of her cunt get slicker and slicker. Our tongues dancing together, I traced my fingers up and began to give her clit some love, caressing it and coating it with her own pussy juice. Maneuvering over, I let my rock-hard cock rest above her nether region, lining it up and sliding up and down her twat as we continued to make out.

After a minute or two, Charley gently grabbed the back of my head and pulled me off of her, and I saw that she was pretty much on the brink already, red-faced and eyes half-closed. "Fuck, you got me... ah, just fuck me already!"

I smirked, pleased with the effect my foreplay had had on her. I pushed myself up and walked back on my knees until I was looking down on her laying on the bed, and lined my dick up with her now well lubed pussy.

I sighed as I slowly pushed into her, savoring the now familiar feeling of my wood sinking all the way into her tight pussy, and slowly began to build up a rhythm. With Charley already as turned on as she was, after only a minute or two she gasped and clamped down on my cock as her orgasm tore through her.

But I wasn't about to give her a break -- I continued pounding away. I stared down between her legs, watching my cock, coated with juices, sawing in and out of my stepsister's sopping wet snatch. She was sweating hard now, and the moisture made her skin glisten, somehow making her look even more sexy.

Her breasts shook and jiggled with every thrust, hypnotizing me like a clock. Acting on instinct, I leaned down and took one into my mouth again, sucking on one nipple and nibbling on it gently, before kissing around her cleavage and moving onto the other side.

My cheeks went concave as I sucked her areola hard, pushing my tongue against the underside before swirling it around her hard nub.

"Fuck... you like my boobs today... huh?" Charley moaned.

I pulled back from her breasts with a wet pop and grinned. "They're perfect. And... oh, fuck... all that baby talk, you know..."

Out of nowhere, there was a gleam in her eye. "Oh yeah? You know... I don't have any... shit... any Plan B left."

I stared down at her. "Ugh... what?"

"If you... cum inside me... I'll get pregnant."

In the back of my head, I knew she was just saying shit to get me riled up. This was Charley, she wasn't going to risk something like that. But the words still had the intended effect. I grabbed both her legs and placed her ankles over my shoulders, allowing me to lean forward and drive even deeper inside of her.

"Oh... fuck," she groaned. "You like that? You gonna... ugh... put your baby in me?"

All I could do in response was whimper, her dirty talk sending all the blood rushing down from brain to my cock, as I felt it grow even larger inside her pussy. Charley reached down and began rubbing her clit in earnest, as I continued to hammer away at her snatch.

Out of nowhere, on a particularly hard thrust, Charley suddenly cried out loudly. "Shit!"

I almost instinctively reached down to cover her mouth, before I remembered. We're all alone. No need to hold back anymore. I picked up the pace, fucking her so hard that her bed was rocking from our movements, her headboard colliding off of the wall as my hips collided off the back of her thighs.

Reaching down, I took one of her tits in each hand, fondling them as I plowed into her slick, tight pussy.

Charley squealed beneath me, her face as flushed as I'd ever seen it. "You fucking... ugh... you want to, don't you?" she panted. "I can... feel it."

All sense of reasoning had left my body by that point. "Fuck. Yes," I grunted in response.

She tried to smirk, but it quickly devolved into a gasp of pleasure. "Ooh... fuck me. Knock me up!"

Charley lifted her legs up and crossed them behind my back, like she was preventing me from escaping. Every time I bottomed out, I could feel her warm pussy juice flowing down and coating my thighs and balls. The whole thing was overwhelming, and I could feel my orgasm rearing its head.

"Charley... oh, fuck. I'm gonna cum... inside you."

"Do it," she howled. "Fill me... with your seed!"

With that she cried out in pleasure, coming for the second time, and began writhing beneath me as I erupted inside her. My body acting on instinct, I pushed my twitching cock as deep inside her as it could go, doing my absolute best to squirt as much of my potent seed directly into her fertile young womb as possible.

It seemed like it lasted hours, sending thick streams of my cum deep within the mess I'd made of her pussy, but after a weak final spurt I groaned, fully spent.

I rolled off of her and closed my eyes as I rested my head against the pillow. "Holy shit... what the hell was that?" I breathed.

Beside me, I could hear Charley giggle. "I don't know, all that pregnancy and vasectomy talk earlier gave me an idea. And I didn't see you slowing down, you perv."

"Yeah... I guess not." Honestly, she was right. The dirty talk had definitely gotten to me -- that was probably the hardest I'd come since our first time. But I just had to make sure of one thing. "Just to be clear... it was all talk, right?"

She rolled her eyes. "Come on, Luke. Obviously."

"Well, you can never be too careful. And you can be a little unhinged sometimes."

She snorted. "Of course, because I can't wait to have your nocturnal, videogame-addicted babies."

"Hilarious," I grumbled as I got up and put my clothes back on. Charley sat up but stayed under the covers, reaching over to grab her laptop and carry on with whatever she was working on.

I was one foot out the door when Charley spoke up behind me. "Hey."

"Yeah?"

She paused. "Aren't you gonna tell me that I'm good at it too?" She was still typing away, in an obvious attempt to pretend like she didn't care about my answer.

I grinned. "Eh. I've had better."

The pillow came flying at my head in a flash, but I managed to catch it before it did any damage. Back in bed, Charley sat with her arms crossed, staring defiantly at the wall, but I could tell she was trying not to smile.

I wasn't as strong as her and couldn't help myself from cracking up as I gently threw the pillow back at her and walked out. "See you later."

*****

It carried on like that for a while -- sneaking around, capitalizing on the rare occasions that Charley staying at home coincided with Mum and Dad going out.

But the days and weeks flew by, and finally, August was here. And with it, the beginning of Charley's lease at her new place.

Naturally, I'd been conscripted into the moving effort without any say in the matter, but I couldn't say I was really mad about it. I was kind of getting second-hand excitement from Charley, and it would honestly be pretty cool seeing her apartment in person, after being shown extensive pictures online.

Now, I'd been happy to hear about Charley moving out ever since she'd told me, the day she got back at the end of June. But obviously, it had been for an entirely different reason: back then, I couldn't wait to get away from her. Now... I was really, really looking forward to the idea of having somewhere we could hang out in private. And honestly, not even just for sex stuff.

On the day, Mum, Dad, Charley and I drove over with a few items of furniture Mum and Dad had sitting around in the house unused. Once we dropped it off, we were off again -- Charley had bought a bunch of other stuff on Facebook marketplace, and we spent a good few hours driving around London, picking it all up.

It was already late afternoon by the time we finally had everything, and there was still a lot to do. Charley, meticulous as ever, had all three of us slaving away -- making sure every couch, bookshelf, table and wardrobe was lined up to the millimeter.

It was even getting to the point that Dad of all people was starting to get tired of it. "Charley, it is quite literally an inch off your mark. I promise you it won't make a difference."

"I understand what you're saying, but you're not thinking big picture," she replied. "If that desk is an inch off, then this shelf is an inch off, and then the whole room is just out of whack."

"Oh sure, the room is what's out of whack," I muttered under my breath. Next to me, my stepmum snorted.

"Hey!" Charley glared at us. "What are you two conspiring about over there?"

"Sorry, dear," Mum chuckled. "It's just that you are being a bit neurotic about all of this."

"Oh, so you're all against me," Charley pouted. "I'm sorry that I'm not comfortable living somewhere ruled by disorder and chaos. You better believe I'm not stepping foot in your house again. A bunch of tasteless fools, all of you."

As much as it was over the top, Charley's authoritarian methods at least meant that we got the job done fairly quickly. Around seven or eight we were all getting hungry from a hard day of labor, and there was obviously had no food in the fridge yet, so we ordered pizza and sat around watching Countdown re-runs.

I was actually surprised to find that I'd had a pretty good time today. Other than mealtimes, we hadn't really spent any time together as a family in years, and despite the deep-rooted urges I often got to just escape their overbearing lectures and shut myself in my room a lot of the time, I realized I had actually really missed this sort of thing.

Finally, after a heated debate between Charley and my dad as to who had been the one to shout out the correct answer to the last question first, Mum and Dad decided it was time to head off.

"Thanks for all your help, guys," Charley said. "You sure you can't stay longer?"

"When you get to our age, you need your sleep," Dad replied. "We're not as young as you two anymore."

"I dunno," I said. "Charley's getting up there for sure."

Charley punched me on the arm, and both Mum and Dad rolled their eyes and went to put their shoes and coast on. As I went to follow them, Charley spoke up from behind me. "Oh, Luke... you can stay for a bit, right?"

I smirked. It was pretty obvious what she had in mind. "Um, okay."

"Don't let your sister pressure you if you don't want to, Luke," Mum interjected. "She's already had her fair share of bossing everyone around today."

Charley made a face at her, and I laughed. "I appreciate the concern. But it's fine, I want to."

Mum beamed. "Alright, then. But be home at a reasonable time."

After Charley and I said goodbye and watched our parents leave, Charley turned to me and smiled. "So... wanna play Mario Kart?"

I blinked at her. "What?"

"I got a secondhand Switch -- figured I'd give you an incentive to come over from time to time." She made a show of noticing my look of confusion, and smirked. "Oh... this is awkward. You thought we were gonna have sex, didn't you?"

"Uh, I... no," I stammered.

She stroked an imaginary beard, like she was deliberating something. "You know what? If you beat me, I'll consider it."

Okay, just Charley being Charley. "Oh, you're on," I scoffed.

We booted up the game on her TV, and I fidgeted around on the couch in anticipation. I was pretty confident in my skills and was very much ready to completely annihilate her. But as the first race started, it quickly became clear that it wasn't going to be so easy. For someone who was so ready to shit on how much I played videogames, Charley was kind of a try hard. I guess it wasn't really news that she didn't like to lose.

After she finished the second lap one spot ahead of me in first place, I knew it was time to lock in. Drifting around the corner, I boosted into a clutch item box and secured the red shell, hitting her with it just moments before she passed the finish line.

"Let's go!" I shouted instinctively as I sped past her flailing racecar, putting both hands in the air.

"Should've known you were too degenerate to ever lose at a videogame," she grumbled, setting down her controller. "Fine, you win."

I grinned. "Win what, exactly?"

Charley smiled back. "Okay, okay, don't push it." She spread out her arms, gesturing to her empty apartment. "You know what this means, don't you? No more slinking around at night, hands over mouths." She shot me a mocking smile. "You don't have to stifle your squeals of pleasure anymore."

"My squeals of pleasure? Oh, we'll see about that." I considered something. "You're not worried that they'll suspect something if I keep coming over here?"

"Of course not. You didn't see the delighted look on Mum's face before she left? She's been pushing for us to bond as siblings since we were kids."

"Sibling bonding?" I laughed. "Is that what this is?"

"Oh yeah," she replied. She shuffled her way over to me on the couch, and placed both her hands on my shoulders. "Just a brother and sister, getting to know each other really, really well."

The fuck? I stiffened up. "Um..." I laughed nervously. "What?"

"You heard me," she replied softly. "It's only right for two siblings like us to display just how much they mean to each other."

"Uh, Charley," I began. I wasn't entirely comfortable with how her words were making my pants feel increasingly tight. "What... what are you doing?"

She shot me an innocent smile. "You don't like it?"

"Yes!" I blurted out. "No... it's a little..."

"I just think it's time we acknowledged what this really is," she said, getting up and slowly walking over into her bedroom.

I quickly followed her, a part of me wanting to stop this in its tracks, but another part of me desperate to know where she was going with it.

"And... what is that?"

"Incest," she replied, deadpan. "We just spent the whole day together as a family, and now we're going to have sex." She pulled off her top slowly and unhooked her bra, showing off her beautiful, shapely breasts.

I gulped. I could feel my heart pounding, her words eliciting a combination of uneasiness and arousal that sent my sex organ into overdrive. I couldn't bring myself to reply, afraid that any words that I tried to formulate would just become a whimper.

She smirked, clearly aware of the effect she was having. "Well, Luke? You want to fuck your big sister?"

I stared at her for a moment in disbelief. Are we really doing it like this? Even though I'd pretty much successfully repressed any negative thoughts about my attraction to Charley since we'd started our arrangement, I really wasn't sure it was a good idea to play around with this. My plan had always been to forget about the guilt, how wrong my feelings for her had made me feel in the past.

But here in the moment, her words had me on edge like I'd never been before, and I couldn't deny what I was feeling downstairs. "Yeah," I croaked, my mouth bone dry.

She grinned and sat down on the bed, sliding off her panties to finally reveal her flawless pussy. "Come on then."

I almost felt like I wasn't in control of my body as I practically tore off all my clothes and hurried over, and pretty much tackled Charley down into the bed, making her squeal. She grabbed my face with both hands and kissed me hard, but we were too far gone for light foreplay like that. I pulled away and quickly kissed down her breasts, stomach and thighs, all the way down to her beautiful pink cunt.

I was just about to dig in when she suddenly spoke up from above me. "No," she said. "Flip around."

I stared up at her, my tongue lolling out of my mouth like a dog. "Wha...?"

"I feel bad, making my little brother get me off without any release himself." With that, she dragged me back up towards her and kissed me again passionately. Breaking off after a moment, she pointed at the foot of her bed. "Lie down that way," she ordered.

I followed her command without complaint, getting on my back with my head only a couple inches from the edge of the bed. Like I was in a fever dream, I watched as Charley swung her left leg over my head, her naked pussy coming into place right above my face.

Oh shit. It wasn't a secret what came next.

"Much better this way, no?" she quipped, before leaning down and taking my cock in her mouth. Eager to taste her again, I grabbed her thighs and pulled her down until my face was buried in her snatch.

"Mmmph!" I groaned right into her pussy as I began to feel her bobbing up and down on my cock. I pushed my tongue forward, sliding through her lips and right into her entrance, the slick ridges of her snatch sticky and sweet. Her bedroom echoed with obscene sounds, the sucking and slurping of Charley going to town on my wood, and the wet kissing and lapping of my tongue in and around her wetness.

A brother and sister in a sixty-nine. I felt like I was going to melt into the sheets beneath us.

On top of me, Charley let out a guttural moan as she took my cock all the way into her throat, the vibrations combining with her twirling tongue to create a sensation that made my eyes roll back in my head. She slowly slid back and forth in time with her head movements, her thighs tensing and flexing as I explored every nook and cranny of her slit.

My cock was becoming almost painfully hard as I felt Charley pick up the intensity. She was now consistently taking my wood well past the halfway point, and my mushroom head kept brushing up against the back of her throat. She began to fondle my balls with one hand, getting them slick with her spit as she slobbered all over my member.

In turn, I desperately slurped up the rivers of juices that were flowing out of her soaking wet pussy, sucking on her clit with abandon. I was doing my best to keep up, but I felt like I was falling behind her intensity.

And then out of nowhere, Charley pulled her head off my cock. "Are you ready?" she asked.

Ready for what?? I had no way of replying, so I just groaned back into her nether region.

She sniggered and took my cock back into her mouth slowly. I was confused at first, not feeling anything different than before.

But then I felt my shaft come to a rest against the back of her throat. And I felt Charley give a slight grunt of exertion as she continued pushing forward beyond the point of no return.

Suddenly, my cock was in her throat. Her fucking throat. Wet, slimy and unbelievably tight, like nothing else I'd ever experienced before. She took more of my rod in, and I could feel slight contractions, almost as though she was gulping. And as she slowly slid deeper and deeper down, the idea of it alone was enough to send me to the brink.

I was about to come, but with Charley's muff shoved in my face I had no way to warn her. And so, as she finally crammed every inch of my cock in her mouth, with a healthy portion of that down her throat, I instinctively thrust my hips up into the air as I began to shoot thick streams of jism into what felt like a direct line to her stomach. Charley moaned again as I came, but didn't let go until I was completely spent.

Finally, she slowly pulled herself off of my cock and immediately began spluttering and coughing hard. She crawled forward, finally giving me a chance to breathe properly, and I gasped as I watched her swing around to face me.

I was half expecting her to spit any cum I'd gotten in her mouth out onto a tissue or something, but as she slumped back to rest her head on her headboard, I saw that there wasn't a single drop left. She'd swallowed it all.

Of course. Not one for half measures, my stepsister.

I felt pretty bad about coming prematurely. "Fuck... I'm sorry," I panted, still lying on my back and looking up at her. "I didn't think you'd..."

Smacking her lips, she locked eyes with me. "Think you got any left for me?"

As if in response, my semi-hard dick twitched and began to grow to attention.

Seeing it, she smirked. "Then apology accepted."

While my erection had kind of answered for me, I was still feeling a little trepidation. I'd never gone back-to-back like that before. "Are you sure? I just came, I don't know if I can-"

"Didn't Mum, Dad and I raise you better than that?" she growled, interrupting me. "Your sister hasn't come yet. It's your responsibility to fix that."

I guess I couldn't argue with that logic. Honestly, this incest thing she was doing was creating a concoction of guilt and horniness so volatile that my brain was malfunctioning. I got up and walked forward on my knees, all the way up to line my rapidly hardening cock up with her still sopping wet opening.

My rod still bathed in Charley's saliva, there was not even a little bit of resistance as the head of my cock pushed apart her opening and slid all the way inside. It was as snug a fit as ever, but I couldn't help but wince slightly, my cock still highly sensitive from my orgasm before.

"Ugh... of course you do," she grunted. "My little brother... always has more... for me."

Fuck. I'd thought the pregnancy fetish shit we'd done a while back was crazy, but this was genuinely sending me to another galaxy. Her words were like an anesthetic, and I quickly forgot about any discomfort as I began to pump my dick in and out of her like I hadn't had a release in weeks.

Already riled up from before, it didn't take long before Charley shut her eyes tight and whimpered, her inner walls clamping down on my cock like she was trying to squeeze the life out of me as she came.

I genuinely had to take a second, and I slowed to a stop. "Jesus... Charley," I gasped. "You're so... fucking tight."

Panting hard, her eyes fluttered back open and she glared at me. "That's no way... to speak to your older sister." She flexed her pussy, making me groan softly. "And did I tell you to stop fucking me?"

Now eager to continue as well, I began rocking my hips again. The walls of her snatch, clearly not at all worn out yet from the orgasm she'd just had, continued to caress and milk me as I sawed in and out of her with abandon.

The abundance of fluids we were both producing as we knocked meat worked together to create the most hot and vulgar squelching sound I'd ever heard, making my head spin as I shoved my prick in and out of her lower lips. Her new bed creaked as I drove her into the mattress time after time after time, my balls slapping against her asshole in tandem with my hips against her thighs, adding to the cacophony with fleshy claps.

I grinned despite myself, hearing Charley squeal softly as I bottomed out inside her, doing my best to turn her inside out as got tighter and tighter. Miraculously, despite the fact we'd both come mere minutes ago, I could already sense the fact that we were both not far off another orgasm each.

Charley seemed to have the same idea, as she stared deep into my eyes. "You gonna... ooh.... gonna cum inside me?"

The feeling of my orgasm approaching took me by surprise -- this would be the second time tonight, after all. But all this sensory and emotional overload was clearly working because there I was, my cock growing past its limits as my body prepared to do as she said.

I moaned loudly. "Yeah... ah, fuck!"

"Do it!" she grunted. "Show your sister... ugh, shit... how much you love her!"

That was the final straw. I plunged my cock as deep inside her as it could go and let go with everything I had, spewing my shockingly large, incestuous load inside of my stepsister. I pretty much collapsed on top of her as she shuddered and came beneath me, her pussy coating my balls and thighs with her girl cum.

It took all of my energy to push myself off of her, and shuffle backwards. After coming twice, my softening dick and balls and ached dully as I gently eased my way out of Charley's well-fucked snatch.

Exhausted, I crumpled down onto the bed next to her, my thoughts just as much of a mess as Charley's new sheets now were.

I just had sex with my stepsister, an hour or so after our parents were in this very room, putting everything together. After we just spent the whole day as a family. The whole time, the taboo nature of it all had added to my arousal tenfold. But now the arousal was gone, and all that was left was the clarity. For the first time since... well, our first time, I felt guilty about this.

"That was... intense," I muttered.

"Sorry," Charley replied sheepishly, still a bit breathless. "I might have gone overboard a little. It's just that after the pregnancy thing we did, I kind of wanted to push our boundaries a little."

"Uh-huh," I said bluntly. "Well, consider them pushed."

She went silent for a second. "Sorry," she repeated quietly. "I didn't mean to make you uncomfortable. Once I started, I just kind of got caught up in the moment."

Shit. Her tone of voice shook me out of my pangs of self-disgust.

I reached over and squeezed her hand gently. "No, I'm sorry. I'm not trying to make you feel like you did something crazy -- I meant intense in a good way. I promise. It was all pretty fucking mind-blowing. It's just, going forward I think we can still have fun without including the kind of dirty talk, fetish stuff that makes us question all our life choices after."

Charley smiled. "Roger that."

I still felt kind of bad. "You're really something else, you know."

"I hope you mean that as a compliment," she replied, eyebrow raised.

"Yeah, I do. Not many people are willing to put themselves out there, even if they might get embarrassed. It's... kind of admirable."

"Well, I'm flattered. Always good to be reminded I'm hornier than most."

I rolled my eyes at her. "Just take the compliment, Charley."

"Yeah, okay." She paused. "I've never really done something like this, you know. It's always been kind of plain in the past -- people you sleep with at this age are too worried about messing up, the other person going around and telling everyone what a shit lay they are or spreading some weird shit they're into. But I think this secrecy thing is kind of a blessing in disguise. If I mess up, the only person who'll ever know about it is my dork stepbrother."

"You always have to ruin it by being mean," I grumbled.

She laughed. "What I'm trying to say is, I feel comfortable with you."

"Oh. Well... me too." It was true -- I always felt comfortable around her. Even before, with all my self-imposed awkwardness and guilt, she had always been the easiest person in the world for me to talk to and hang out with. And even if it was only in a sexual context, it still felt pretty cool to hear she felt the same way.

I could already feel the negative emotions from before kind of just... floating away. Talking with her just put my mind at ease. I still didn't really understand how it was so simple.

I cleared my throat. "Um... I should head back. As supportive of our bonding time as Mum is, it's getting pretty late."

"Sure," Charley replied.

We both gathered up our clothes and got changed, and Charley walked with me to her front door. It was still a little bit trippy, Charley having her own place -- truly the end of an era. But I was still excited about what was to come. In fact, as I turned the latch I kind of found myself not wanting to leave.

But I opened the door and turned to say goodbye anyway. "See ya."

"Hey..." she hesitated. "We're good, right? You know, to... keep things as they are."

"Still hung up on the incest thing? I thought you said you didn't care if it was just your dork stepbrother who knew." When she looked away bashfully, I reached out to squeeze her shoulder reassuringly. "Yeah, of course we're good. It just took me by surprise is all. And for what it's worth, I think you're a great big sister."

She rolled her eyes and pushed me away, groaning. "Alright, alright. Just get out of here."

I grinned back. "Too soon? Okay, too soon."

*****

Over the next few days, I kind of found myself missing the evening we'd all spent at Charley's -- and not even just the sex stuff. I'd actually had a really good time hanging out with her, Mum and Dad. I was even starting to regret all the time I'd spent rotting in my room this Summer. I think I'd caught the socializing bug off of Charley.

Unfortunately, they were all pretty busy so there wasn't really an opportunity to hang out as a family. And so, I messaged a couple of uni friends, asking if anyone wanted to meet up -- and lo and behold, a few people who were still in town said they'd all be down to go.

Crazy how easy things are when you make the first move.

On Wednesday, I'd pretty much been home alone for the past few days because Mum and Dad had taken time off work to go on some romantic getaway together, so I was eager to head out for a few pints. Funnily enough, I hadn't had even a drop of alcohol since Abigail's party all the way back in early July.

As I sat on the chair in the entryway, lacing up my shoes, I was almost salivating at the idea of a crisp, cold pint of Madri. I almost didn't react when the front door suddenly opened, and my stepsister walked in.

She was dressed as casually as you'd ever see her, just baggy sweatpants, a jacket and white t-shirt, her blonde hair let down and a little unruly. Clearly, she hadn't spent hours on her appearance as she was known to do on occasion, and yet she was pulling off the 'I don't care about my appearance, I'm just naturally hot' look to perfection.

"Charley?" I stood up. "What are you doing here?"

"Good afternoon to you too," she replied. "I can't come over and visit my dear family every once in a while?"

I snorted. "I distinctly remember a certain someone saying she was never stepping foot in this tasteless house again."

"Fine," she huffed. "You got me. The Wi-Fi is out in my building, and I was super bored."

"You don't have some friends on retainer to go hang out with?"

She shot me a look. "They're not dogs, Luke. And yeah, I probably could. But I was out really late last night and I'm tired. I just want to relax and watch TV all day. Although..." She smirked as she began to sashay up to me slowly, hands clasped behind her back. "If we have the house all to ourselves, maybe I could be persuaded to do something else for a little bit..."

I swallowed. "I, uh... as much as I like what I think you're suggesting, I was actually just on my way out. Meeting a couple people from uni."

"You're meeting people?" Charley stopped in her tracks in disbelief, eyeing me suspiciously.

"Jesus, do you guys genuinely think I don't have a single friend?" I sighed. "I'm not some incel!"

She shrugged. "You don't do much to prove otherwise."

"It's real nice to know my family thinks so little of me."

"Whatever. Have fun, I guess," she muttered as I threw my jacket on and opened the front door. "I'll just stay here... all by myself."

I smirked. "You'll be okay. I do it every day, no problem."

Finally out of the house, I got the tube into central London and walked over to the Wetherspoons I was meeting the guys at. It was mid-afternoon on a Wednesday, so it was fairly empty by central London pub standards, and as I walked in it was easy to spot Max, Chris and Jayden already at a table with a pint each.

I strolled over and sat down, looking pointedly at the drinks in front of them. "Hey. Thanks for waiting till I got here, guys."

Chris checked his watch. "You're ten minutes late, bro. You forfeited any right to courtesy."

"Anyway, I always need to pre before attempting to have a conversation with your anti-social ass," Jayden added.

"Yep. I'm out of here," I joked, pretending to get up to leave before Max grabbed my arm and pulled me back down.

"Relax, relax," Max said. "It's good to see you, dude."

"Yeah, you too."

Next to us, Chris rolled his eyes. "You two done sucking each other off?"

"Jesus Christ, can't even greet a friend anymore," I laughed. "You need to learn some decorum, man. I'm gonna get a drink."

After I got my pint and sat back down, we all got caught up with what we'd done so far over Summer. Chris and Max had both gone on family holidays, to Spain and Switzerland respectively, while Jayden had just been working, trying to support his addiction to going out on dates.

It was nice getting a chance to hang out with them now uni was done for the year -- most of the time we'd hang out, it was with some assignment or exam hanging over our heads, whatever fun we were having spoiled a bit by some undercurrent of guilt from the fact we probably should be studying.

Before long, we were four or five pints deep and the conversation kind of devolved into a mess of football talk combined with tales of all three of their love lives, talk which I thought it would be smart to abstain from. And finally, well beyond the threshold of wasted, Jayden announced he had to wake up at 5am the next morning for work so he had to go, and Chris decided to go with.

I didn't really mind that much. I liked them both, but Max was the first friend I'd made at university, and now two years later, I'd probably consider him my best friend. Other than Charley, he was probably the easiest person for me to talk to out of everyone I knew.

As soon as Chris and Jayden were out the door, Max turned to me and smiled. "So," he began. "Who's the girl?"

My heart skipped a beat. "Uh... girl?"

He rolled his eyes. "Come on, Luke. We've been here for over three hours, and you've had a stupid grin plastered on your face since the moment you walked through the door."

"Maybe I just enjoy your company?"

"I appreciate that," he chuckled. "But this isn't a 'hanging out with my friend' type of grin. This is an 'I'm seeing a girl, it's going great, and I'm head over heels' type of grin. And believe me, I can tell the difference on you because you don't get any action."

"Har har." I supposed Max was right -- ever since Charley and I had started our thing, I'd been in a pretty great mood. It was hard not to be -- when you start a sexual relationship with a girl you've had a crush on for over a decade, it makes sense you'd be feeling good about it.

I briefly considered telling him about her -- not the specifics of course, not that it was my stepsister. But just that there was actually a girl. It was strange -- I'd never thought about telling anyone before, but there in that moment I desperately wanted to. I mean, Charley was the kind of girl you'd want people to know you're in a relationship with, even if it wasn't romantic.

But I forced down the feeling. Charley and I had made a deal to not tell anyone, and I wanted to honor it. Stick to the plan. Damn, she's rubbing off on me in more ways than one.

"I hate to disillusion you of your detective skills, but you're way off. There's no girl. You think I wouldn't be bragging about it if there was?"

He held up his hands, clearly not convinced. "Fine, don't tell me. Just make sure I get an invite to the wedding, okay?" He finished off his pint. "But I'm genuinely happy for you either way, man. You're a good guy and you deserve it."

I grinned. "Shit, carry on like that and you're gonna make me tear up."

"Oh, shut up," he laughed. "Next round's on you."

As I rode the tube back that night, it was pretty hard to get what we'd talked about off my mind. Obviously, Max been right that there was a girl, but not about the nature of it. Head over heels? Wedding? It made me feel a little weird, the same way I'd felt when Charley had brought up the rule that if either of us fell for the other, the arrangement was over.

Luckily, I'd agreed with her. And I still did. Yet, Max's words echoed in my head. Was it really so obvious how happy I was with the way things were going?

And more importantly... I wondered if Charley was going through the same thing. Were all her friends questioning why she was smiling so much? Grilling her about some secret new guy she was clearly seeing?

I had no idea. I wasn't even sure if it would be a good idea for me to know. But as I arrived back home and stepped inside, it was hard to not think about it.

It was pretty dark, but I could hear noises from the living room. I made my way through the hallway, and saw Charley sitting on the couch watching something, the lights turned low.

"Hi."

"Oh, hey." She paused what she was watching, and looked back over her shoulder at me, smiling. "You have a good time?"

"Yeah, just went for a couple pints." I decided not to bring up the specifics of my conversation with Max. "How come you're still here? It's getting pretty late."

She shrugged. "Don't really want to take the Central Line right now. It's always so packed. I figure I'd just stay in my old room tonight, head back in the morning."

I stood there for a second, a little suspicious. The Central Line was the Central Line, whether you take it in the morning or evening. Honestly, it would be a lot worse if she went back during rush hour tomorrow. Was she just waiting for me?

"Fair enough," I replied. I felt a nervous surge of energy. She'd wanted to do something before I'd gone out -- did she still feel the same way?

I turned to hang up my jacket, and Charley spoke up from behind me.

"You wanna join me? I'm only about ten minutes into the movie."

"Depends. What are you watching?" I peered at the TV, trying to recognize where the still image came from... only to realize I'd seen this frame countless times before.

"Really, Charley?" I groaned. "When Harry Met Sally? Again?"

"Hey! It's my favorite," she replied indignantly.

"Don't get me wrong, it's great. But... it does start to get a little old the thirty-seventh time your stepsister makes you watch it."

Of course, I said all that. But I was already making my way to sit beside her on the sofa.

"You're just too immature to understand," she replied snarkily as I plopped down next to her. "A movie like this is timeless, it gets better with every rewatch."

"Oh, immature?" I laughed. "Not everyone has the luxury of your advanced age. The dementia kicks in, and every time you watch it is the first time."

Charley clearly didn't have a comeback to that, because she just slapped my leg lightly and un-paused the movie.

I had to admit, after a couple minutes of sitting there watching, I was having a good time. Not because watching the film for the millionth time was just so riveting, though.

I hadn't been lying before, when I said that Charley had made me watch this with her countless times. But really, it had been quite a while since we'd last done it -- over four years, a couple months before she left for Stanford. Sitting here now, it was almost nostalgic. Like I was a teenager again, watching a movie with my crush. Only now, I knew it wasn't entirely unrequited.

Honestly, I was barely even paying attention. I was just basking in the warm feeling. It was only when we got to the infamous fake orgasm scene in the diner that I snapped back to reality.

Somehow, over the course of the movie, Charley had snuggled up closer to me, resting her head on my shoulder, and I had put my arm around her shoulders. What the hell? I hadn't noticed it happen at all -- we'd just sort of ended up this way naturally. I sneaked a glance down, and it was clear that she wasn't thinking about the position we were in. She was engrossed in the scene, a slight smile on her face.

I pretty much spent the rest of the movie focused on her, watching every micro expression -- small chuckles, frowns, a sad smile. I was entranced. She was just so, so beautiful.

As the New Years Eve climax arrived, and Harry stood there telling Sally all the reasons he loved her, Charley must have finally noticed that I was staring at her, and she tilted her head up to look back at me.

I think I expected her to say something -- a stern order to pay attention, that I was being a perv again. But she just gazed up at me silently, while Auld Lang Syne played softly in the background.

I was feeling this kind of fluttering ache in my stomach as I gently cupped her cheek with my free hand and leaned down to kiss her softly.

We'd kissed before of course; but never like this. We both slowly shuffled around, maneuvering so we were sitting upright, wanting to be more comfortable. I think both of us knew we wanted to stay like this for a while.

My head swam as I got lost in it all -- her soft lips, the tickle against my cheek as she breathed out through her nose, her fingers slowly running through my hair. It felt like the two of us were the only people in the whole world.

In the background, I was vaguely aware of the movie finishing, the TV timing out and turning off, but I was barely registering any of it. I was just lost in the kiss, a world apart from anything we'd done before.

It was only after an immeasurable amount of time that Charley slowly pulled away, staring into my soul. The TV screen was off, and there was only the light of a single lamp casting shadows across the room. She looked hauntingly beautiful as they shifted across her face. "Let's go upstairs," she whispered.

I nodded. I wasn't sure I still had the ability to speak.

Luckily, that was the last thing either of us said to each other that night. She took me by the hand as we made our way up to her bedroom, and as soon as we were through the door she wrapped her arms around my neck and pulled me down into another kiss. This time, she slipped her tongue into my mouth and our tongues danced together as we stood there in each other's arms.

After a while, I was vaguely aware of Charley's hand tracing down my chest, into my pants, and wrapping her hand around my slowly hardening cock. I breathed out hard through my nose and pulled her in closer, hugging her tightly as she coaxed my erection to life.

Still holding her, I slowly walked us over to her bed and eased Charley onto her back, never breaking the kiss once. It was only once I was nearly at full mast that I reluctantly pulled away and began taking my clothes off. Charley followed my lead, and I watched in awe as she revealed her exquisite naked form, lit only by streams of moonlight coming in through her bedroom window. It was like something out of a fairytale.

Once we were both fully naked, I crawled back on top and gently cupped her vagina, prepared to return her favor from before, only to find that she was already soaking. I gently rubbed my shaft up and down on her sopping wet pussy lips, lubing up my cock with her juices, before lining it up at her opening.

Charley shivered silently in anticipation, and we both stared, mesmerized, down at the place we were about to be joined. Finally, with her tight hole kissing the glans of my dick, I leaned forward and began to enter her.

As I slowly slid my way inside her, Charley's pussy seemed to mold around my shaft, almost like it was welcoming me home. All this had started just over a month ago, and yet by now I felt like I knew her body like the back of my hand.

I was almost taken aback at how hot her pussy was. It was furnace down there; the copious amounts of juices she was producing the only thing tempering the flames. Her inner walls felt like liquid velvet, and I savored every single sensation as I glided in and out of her channel.

I don't know how my dick felt to her, but my face at least felt like it was on fire. Somehow this was the most intense sex we'd ever had, and that was saying something considering it was only last week that she'd deepthroated me and yelled at me to show her how much I loved my 'big sister' by coming inside her.

Charley looked almost angelic, her blonde hair pooling around her on the pillow, face flushed and mouth slightly agape. I had no idea how I'd ever felt guilty about wanting this. How could something this amazing be wrong?

I leaned down and kissed her deeply, my tongue gently probing her mouth, tasting her. Charley kissed me back earnestly and let out a quiet moan into my mouth as she reached up to weave her fingers through my hair. In this moment nothing had ever felt so right.

With no parents in the next room, no guilt, no dirty talk, I was able to notice a million things I'd never paid attention to before. The way she let out a shuddering breath as I kissed softly down her neck; her impossibly soft yet toned body, as I traced my fingers all the way up and down her breasts, waist and legs; her soft whimpers, low groans, gentle panting -- every single exquisite sound of pleasure she let loose as I rocked my hips and entered her time and time again.

I took every single detail in. Knowing I was doing this to her gave me satisfaction like nothing else. I honestly had no idea how long this had lasted -- it could have been a minute or an hour. But just like that, I could feel that she was bringing me to the brink of orgasm.

We locked eyes, and it was like we had a telepathic connection. Our bodies tensed in concert with each other, and I breathed out hard as I pushed as deep inside her as I possibly could, trying to connect with her as much as physically possible. She whimpered and started trembling as her pussy clenched down on my cock, and I began shooting every bit of cum I could muster inside her. Trying to give everything I had to this girl I had wanted for twelve excruciatingly long years.

Once I was done, the exhaustion hit like a ton of bricks. I closed my eyes and leaned down to rest my forehead against hers, and she gave a little sigh. My penis, still lodged to the hilt inside her, was already starting to slowly soften, but I couldn't bear to separate from her just yet.

As such, we stayed like that for a good while. It was only when I could genuinely feel that I was about to drift off to sleep that I finally dislodged my fully soft cock from her pussy, and rolled off her to the side.

Charley's arm followed me, reaching across my bare chest as she maneuvered herself over to rest her head on my chest. At the time, I didn't even register that this was the first time we had actually slept together after... well, sleeping together.

It had been a long day. And with the familiar scent of Charley's vanilla shampoo, and the feeling of her light, hot breath on my chest, it felt like only moments before I was drifting off into sleep.

*****

"Hey."

I slowly opened my eyes, to see Charley smiling down at me from beside the bed. I'd been having a vivid dream, but as soon as I saw her, I forgot all about it.

"Charley? What... oh." I noticed she was fully dressed.

"I'm heading out to meet up with Abigail again now," she said. "Just wanted to let you know so you didn't wake up to an empty bed and wonder if I'd been kidnapped or something. Also, I'm pretty sure Mum and Dad will be back pretty soon, and it wouldn't be a good idea to still be naked in here when they arrive."

"Oh... yeah." As I shook of the sleep, the feelings of last night were starting to come back to me. Were we going to talk about it? Was it even something that we needed to discuss? I mean, put simply we'd just watched a movie, kissed and then slept together, which was nothing new.

But it felt different. Not even close to how it was usually. Surely Charley knew that as well.

I fumbled around for my clothes and started pulling them back on, groaning as the glare of the sun through her bedroom window hit me right in the eyes.

She chuckled. "Paying for your sins of last night?"

"Charlotte Kim, comedian," I muttered.

Unfortunately, I studied her as I continued getting dressed, and her cheery grin betrayed nothing. She was just the same girl as ever.

Once I was fully clothed, I clambered out of Charley's bed and made my way out of her room. I was seriously beginning to think it was just all in my head -- a product of cheap Wetherspoons pints and nostalgic romance movies. "See you later. Have fun with Abigail."

But just before I left, she called out from behind me. "Hey, wait!" I stopped and she rushed up behind me. "I'm busy the next few days, but do you want to come over to mine next Friday?"

I smiled. "Sounds good. You know I don't exactly have a packed schedule, Charley."

She stood up on her tiptoes and kissed me quickly. "Cool. See you then!"

I stared at her, dumbfounded, as she brushed past me and skipped down the stairs on her way out. What the hell was that!?

It was probably just my imagination, but it almost felt like my lips were tingling, like Charley had zapped me with an electric current when she kissed me.

We'd kissed before, obviously -- quite a lot at this point. But always before or during sex, lust-fueled, hot and heavy. Even last night, with how tender it had been down there on the couch, it had been a precursor to something.

It had never been like this: so casual, so offhand, so light. Like it was the most natural thing in the world. It was somehow having more of an effect on me than anything else we'd done before.

I trudged into my room and sat down heavily on my bed. I had this warm feeling in my chest, and I really wasn't sure it was a good thing. Surely I was right about last night.

Something had changed. And looking back, it's pretty clear that this was the moment our arrangement began to fall apart.