"You're going down tonight, Tommy," Kelly smirked, adjusting her tight crop top as she sprawled across the oversized couch. The living room was packed with five of their closest friends, all gathered for the Tyson fight. Her long legs stretched out, bare feet propped on the coffee table next to the pizza boxes and beer bottles.
Tom glanced over at his sister, trying not to let his eyes linger too long on how her shorts had ridden up. "Getting nervous yet? That swagger's looking a bit forced, sis."
"Fuck off," Kelly laughed, tossing a chip at him. "Tyson's gonna destroy this YouTuber clown. I'd bet my life on it." She shifted positions, deliberately drawing attention to her curves. "Oh wait, I basically did bet my body on it."
Their friend Jake nearly choked on his beer. "Still can't believe you actually agreed to those terms. While you're not even on birth control? That's wild, even for you, Kels."
"Because it's never gonna happen," Kelly shot back, but there was a slight tremor in her voice that only Tom caught. "My brother's gonna be crying over his lost car keys while I'm celebrating."
"Speaking of which," Sarah chimed in from her spot on the floor, "Tom, you really putting up your Mustang? That's like, what, thirty grand?"
Tom adjusted his glasses, a small smile playing at his lips. "Seems fair given what I get if I win. Unlimited access, whenever, wherever, however I want. My sweet little sister didn't think that through very well."
"Jesus Christ," Mike muttered, "you two are fucking crazy. This is some next-level sibling rivalry shit."
Kelly sat up straighter as the pre-fight coverage began. "Shut up, everyone. It's starting." Her confident posture couldn't quite hide the nervous energy radiating off her.
Tom watched her more than the TV, noting how she fidgeted with her hair, a tell she'd had since childhood. His baggy clothes concealed his growing excitement as the fighters entered the ring. He'd researched extensively, knew things Kelly hadn't bothered to learn about the YouTuber's actual boxing experience.
"Look at that cocky piece of shit," Kelly sneered at the screen. "Tyson's gonna knock him into next week."
"Sure about that?" Tom's voice was calm, measured. "Want to back out now? Last chance, sis. Once that bell rings, there's no turning back."
Kelly's blue eyes flashed defiantly. "Not a fucking chance. I'm not some pussy who backs out of bets. Besides," she stretched deliberately, making her breasts strain against her top, "it's not like you've got the balls to actually go through with it if you win."
Sarah and Jake exchanged knowing looks. Everyone in the room knew about Tom's not-so-subtle staring at Kelly when he thought no one was watching. His attraction to his sister was an open secret among their friends.
"First round's starting," Mike announced unnecessarily as the bell rang.
The tension in the room was palpable. Kelly leaned forward, biting her lower lip as the fighters circled each other. Tom's eyes kept darting between the screen and his sister's increasingly nervous posture.
"Come on, Tyson," Kelly whispered, her confidence wavering as the YouTuber landed several solid hits. "What the fuck is he doing?"
"Not looking so good for your champion," Tom commented casually, though his heart was racing. Each exchange in the ring brought him closer to what he'd fantasized about for years.
The first round ended with Tyson looking sluggish. Kelly's face had lost some of its color. "He's just warming up," she insisted, but her voice lacked conviction.
"Want to renegotiate those terms?" Tom asked, leaning closer. "Maybe add some limits while you still can?"
"Fuck you," Kelly snapped, but her eyes were glued to the screen as round two began. "I don't need limits because it's not happening."
The room fell silent as the fight continued, the only sounds being the commentary from the TV and Kelly's increasingly agitated breathing. Every punch landed against Tyson drew a small gasp from her, while Tom sat eerily still, watching his sister's growing realization that she might have made a terrible mistake.
Sarah reached over and squeezed Kelly's hand. "You okay, girl?"
"I'm fine," Kelly replied automatically, but her leg was bouncing nervously. "Just fine."
"Yo, pass the fucking pizza!" Mike called out, reaching across Sarah to grab another slice. "If I'm watching Kelly lose her dignity, I need proper sustenance."
"The only thing getting lost tonight is Tom's car keys," Kelly shot back, but grabbed a slice herself, deliberately letting sauce drip onto her brother's shoulder as she passed the box. "Oops, sorry not sorry."
"Real mature," Tom smirked, wiping it off. "Keep that attitude up, sis. We'll see how sassy you are when you're bent over-"
"Jesus Christ!" Jake interrupted, laughing and throwing a cushion at Tom. "Can we not have the preview of coming attractions while I'm eating?"
Sarah was scrolling through her phone, giggling. "Hey Kelly, want to see the lingerie set I picked out for your first night as Tom's personal fucktoy?"
"Fuck off!" Kelly laughed, snatching the phone. Her eyes widened. "Actually... that's kind of cute. But it's never happening, so save your money."
The fight continued in the background, but the party atmosphere remained electric. Tom's friends had brought a drinking game - take a shot every time Tyson looked winded or the YouTuber landed a clean hit.
"Shit," Kelly muttered, throwing back another shot as Tyson stumbled slightly. "This isn't fucking fair. You guys are trying to get me drunk."
"Aw, worried about making bad decisions?" Tom teased, adjusting his glasses. "Little late for that, isn't it? Speaking of which, you're ovulating this week, right?"
"Oh my god," Mike snorted beer through his nose. "Tom's been tracking his sister's cycle. That's some dedicated perversion right there."
Kelly flushed bright red but maintained her bravado. "Look at this nerd, thinking he's got a chance. Probably researched 'how to please a woman' on WikiHow."
"Better than your research on this fight," Tom countered smoothly. "Did you even watch any of the YouTuber's previous matches?"
"Didn't need to," Kelly stretched out, deliberately showing off her long legs. "Iron Mike's got this. Though I gotta say, Tommy, your confidence is almost making me nervous. Almost."
Sarah was already ordering more pizza on her phone. "We need fuel for the aftermath. Either we're celebrating Kelly's victory or... documenting the beginning of her new lifestyle."
"You're not fucking documenting shit," Kelly laughed, throwing a handful of chips at her friend. "And Tom wouldn't know what to do with me anyway. He still plays PokΓ©mon."
"Hey, don't knock PokΓ©mon," Tom grinned. "I'm very good at catching things I want."
The room erupted in groans and laughter. Jake raised his beer. "To the weirdest fucking bet in history. May the best sibling win."
"To watching Kelly get exactly what she deserves," Sarah added with a wink.
"To Tom finally getting what he's been staring at for years," Mike chimed in, dodging Kelly's thrown pillow.
"To my brother's soon-to-be-missing car," Kelly declared, raising her shot glass. "And to all of you perverts enjoying this way too much."
"To my sister's overconfidence," Tom finished, clinking his beer against her glass. "And to the next twelve months of her life."