Impossible to Resist

**Ten years ago**

James lay awake in the overly soft king bed on the third floor of an extravagant vacation house. His girlfriend snored beside him, drunk after sipping mimosas all day. It had been a fun weekend. A good mix of old friends and new faces. Couples blowing off steam, and singles looking to flirt and hook up. His friend Joey had invited friends from home, college, and his new job in San Francisco to celebrate his 30th birthday in South Lake Tahoe. James had driven up from the bay area with Tracy, his girlfriend of a year, and his younger brother,

Mark.

The house sounded like the party was dying down, so James decided to get up and go look for his brother to nail down what time they were leaving in the morning. He wandered around, peeking into several dens and gathering spaces, before walking into the darkened kitchen. Sitting on the counter, lit only from the pale glow of the microwave, was Kate.

James had been avoiding Kate since the moment he'd met her when they'd arrived at the lake house and she had been wearing nothing but a plunging black bathing suit. Short, curvy, and brunette, Kate was exactly his type. But it was more than that. There were tons of beautiful women in the world, and James never felt bad about flirting a bit even when he had a girlfriend. But he'd never actually been tempted to cheat before. Something about Kate kept drawing his eye all weekend. The swell of her ass as she was lying by the pool. The way her eyes crinkled up when she laughed. The delight on her face when she had the whole room in stitches telling a story about her eccentric neighbors. But most of all, the couple of times she'd made a dry comment that only James could hear and the wink she gave him when he choked on his beer in reply.

James froze at the entrance to the kitchen, terrified to be too close to her.

"Hey, stranger," said Kate. "Want some popcorn?"

He could smell it now, and see the bag slowly whirling inside the microwave.

"Um," he said.

He'd just noticed how the light of the microwave illuminated her profile. Through her thin pajama top, he could see the outline of one perfect breast and the small, erect nipple jutting forward. His mouth went dry at the sight. He cleared his throat.

"Yeah, sure. Dinner was a while ago, I guess."

She grinned at him.

"Don't be mad, but I like to burn it juuuust a little bit. It makes it so much sweeter."

He looked up at her lips when she said "sweeter" and felt a pang of longing. He'd never had such a strong urge to kiss someone he wasn't dating. What was happening here? They stared at each other a beat too long.

The microwave dinged and they both jumped, feeling guilty. Kate pulled the bag out and shook it, making her breasts bounce and her shirt fall down one shoulder. She opened the bag and took out two kernals before placing them on her tongue and sucking them into her mouth. James moaned at the sight. Was she intentionally trying to get him worked up?

"Want some?" She asked, looking up at him. In a daze, he slowly walked toward her. He stood in front of her open legs and put his hand into the bag, taking a small handful of popcorn. They made eye contact again as they both slowly chewed. She grinned again. "My hands are so greasy."

James smiled down at her and slowly raised his fingers to his mouth. He licked the butter off. Kate watched him and he swore he could see heat in her eyes. He slowly lowered his hand and then gently reached forward until his fingers grazed her nipple over her shirt. Kate's spine instantly straightened and she sucked in a breath, but she didn't pull away. She looked straight into James's eyes and bit her bottom lip. He moved his fingers along her shirt collar and unbuttoned the top button, moving the fabric to the side and revealing her nipple to the cold air. Her skin instantly pebbled and her nipple became even harder. He pinched it gently and her answering moan sent a jolt directly to his dick. He stepped forward and suddenly his pajama covered dick was dangerously close to the crotch of her shorts.

Unable to control himself, James bent down and drew her nipple into his mouth. He swirled his tongue around the bud and sucked gently.

"Oh my God," said Kate. "James."

She reached a hand up the back of his head and pushed her fingers into his hair. It felt so good to finally have her touch him. James moved his hand up her thigh toward her crease.

Just then they heard a crash from the bathroom down the hall. They both froze. James, suddenly coming back to himself, removed his mouth and hands from her body and stepped back.

"No," she pleaded, "don't stop."

But the spell was broken. "I'm sorry, I can't. I shouldn't have done that."

He looked in her eyes, which was a mistake. Lust, uncertainty, and self-consciousness clouded her eyes and he nearly reached for her again.

He gritted his teeth and looked down. "I'm sorry. I have a girlfriend. This isn't fair to her."

He turned and strode out of the room, taking the stairs two at a time up to his room.

On the way home the next day, Mark couldn't stop talking about Kate and how thrilled he was that she finally gave him her number that morning right before they left.

***Present day**

How had he gotten himself into this. James had spent the last 10 years avoiding being around Kate. As Mark and Kate's relationship had gotten more and more serious, it had become harder to avoid her without making it obvious. James had finally had to move across the country to make it easier to avoid dinners and weekends away without raising suspicion.

Their wedding weekend had been hell. Luckily, James had started dating Trisha a few months before and was able to channel his pent-up lust and frustration into fucking her on every surface of their beachfront Maui condo. When he entered her from behind he could pretend it was Kate moaning his name like she had on that countertop in Tahoe.

And now, 8 years into Mark and Kate's marriage, they insisted on a family trip to Mexico. Mark, Kate, their two kids, James, his girlfriend, and Mark and James's parents. The only problem was that James's girlfriend broke up with him a month before the planned trip. Something about him never fully opening up to her.

So now James was at a fucking villa in Puerto Vallarta with his parents, brother, his insane but adorable nephews, and the only woman who he could not stop thinking about.

The first few days of the trip James focused on shooting the shit with Mark, throwing his nephews around the pool, and taking walks on the beach with his parents. But on the third night, he was washing dishes after dinner when Kate came in to help. From the sink, he could see everyone else sitting around the pool, relaxed and sun-kissed.

Kate picked up a dish towel and started drying. He ignored the way her movements made her breasts sway in her sundress.

"I'm so sorry about Christa," Kate said. "I actually liked her. "

James laughed. "Wow. A big compliment, coming from you." He teased.

"Hey!" Kate exclaimed. "I also liked... Tina."

"I think you mean Trisha, and you only liked her dog."

"Well... the dog was her best asset." Kate laughed. "It's not my fault that you like to date women that are beneath you. Half of them have never cracked a book, I swear. "

"That's not true!" James protested. "Look, not everyone can be as amazing and beautiful as you are." He meant the comment to be sarcastic, but Kate blushed and looked down, biting her lip.

"I was kidding..." he said. But the sight of her biting her lip immediately made his dick thicken. It always flashed him back to the night on the counter and the taste of her on his tongue.

Worried his boner was going to be visible in his pants, he turned away from the sink right as she turned toward him. His semi-hard dick rubbed against the outside of her leg and her shoulder bumped into his chest.

"Oh God, sorry." She looked embarrassed.

"Sorry." He said. He went up to his room and closed the door.

Later that night, Kate was lying in bed next to Mark. She was still feeling flushed and horny after accidentally rubbing against James's dick in the kitchen. She couldn't believe she still had that effect on him. It had been so many years since they'd been alone together. She really thought he had long since forgotten Tahoe.

She heard the shower turn on down the hall. The thought of James in there, naked and warm and wet made her pussy clench with need. She and Mark had had sex the day before, but she was surprised to feel that she was getting wet thinking about James. Making a decision, she slowly got out of bed and crept down the hall. She paused in the dark hall outside the bathroom and listened intently. She realized that the door wasn't fully shut and slowly nudged it open a crack. She could just see James's back through the glass shower door, butt clenched and shoulder moving rhythmically. She realized with a jolt that he was masturbating. She stood, frozen, watching him. He leaned forward, pressing one hand into the wall of the shower, and started to move his arm in fast jerks. Almost without thought, she slid her hand down her body and into her underwear. She rubbed her clit in slow circles in time with his strokes. She heard him moan and had to bite down on her tongue to keep from echoing him.

"Fuck." She heard him whisper, "That's it. Lean your head back."

What? She thought. Who is he talking to?

"Oh, Kate." She froze. Did he know she was here?!

"Come for me, baby. Come all over my dick." Kate's mouth fell open. James was fucking his fist in the shower and imagining he was fucking HER. It was the hottest thing she had ever seen or heard.

"That's it, baby. You take my dick so well. Fuck. I love being inside you."

Kate's orgasm slammed into her. She bit down on her hand to stay silent. Mark never talked during sex and James's dirty talk made her blood pound through her body. She couldn't believe he still wanted her. She knew, when she first started dating Mark, that James had been interested in her. But he had a girlfriend and they didn't really know each other well. And then he avoided her so much over the years that she figured she had started to annoy him. She never guessed that he fantasized about her the way she fantasized about him.

She whirled around and quietly slipped back into her room and bed with Mark.

**To be continued**