Jane and John were sprawled out on the couch, nursing their beers and dissecting their respective love lives. Or rather, the lack thereof.
"I mean, seriously, how is it that none of your ex-girlfriends have ever gone all the way with you?" Jane asked, a teasing grin playing on her lips.
John shrugged, taking a swig of his beer. "I don't know. Maybe they were just intimidated by my charm and good looks."
Jane snorted. "More like they were turned off by your lack of size."
John raised an eyebrow. "Oh, really? And just how would you know that?"
Jane shrugged, a mischievous glint in her eye. "I have eyes, don't I? And a vivid imagination."
John rolled his eyes. "Well, if you're so curious, why don't you see for yourself?"
Jane raised an eyebrow. "You're challenging me to test your size?"
John grinned. "Why not? It's just a friendly bet."
Jane, never one to back down from a challenge, grinned right back. "You're on."
With a flourish, John removed his shirt, pants, and boxers, revealing his impressive size. Jane's eyes widened in surprise.
"Well, well, well," she said, trying to keep her cool. "Looks like someone's been holding out on us."
John chuckled. "I guess you'll just have to see for yourself."
Jane hesitated for a moment, then surprised even herself by removing her shirt, pants, panties, and bra. John's eyes widened in surprise.
"Well, well, well," Jane echoed, trying to keep her cool. "Looks like someone's been holding out on us."
John laughed. "I guess it's time to pay up. Sit down, chicken."
Jane stuck her tongue out at him, then straddled him in the missionary position. John's size felt even more impressive up close, and Jane couldn't help but gasp as she guided him into her pussy.
"Fuck," she muttered, surprised by how deep it felt.
John grabbed Jane's hips and started thrusting, causing Jane to grab his shoulders and ask if he was actually fucking her.
John grinned. "Oh, you bet your sweet ass I am."
Jane laughed. "Well, don't cum inside me."
John's thrusting speeds up, and Jane jokingly tells him she's not on birth control.
John grins. "I'm going to cum inside you."
Jane jokingly tells him to.
John starts cumming inside Jane, surprising her by staying hard.
John rolls them over, and Jane wraps her legs around his waist, jokingly saying she's locking him in.
John chuckles. "I don't think you can handle me, little sister."
Jane grins. "Oh, you have no idea what I'm capable of."
They continue to joke and fuck, the tension between them building until they're both panting and sweating, their bodies slick with desire.
As they reach their climax, Jane can't help but think that this is one bet she's glad she lost.
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