Nikki had one mission today: torment her brother's best friend until he was a blushing, stammering wreck. Their history was a battlefield of her relentless teasing, each encounter leaving him red-faced and rattled. Today, she strutted up to his door, knocking with a smirk, barely looking up from her phone as the door creaked open. She didn't wait for an invitation, barging inside with a sassy toss of her hair. "Yo, loser, Zack's off fucking some chick from your class, so I'm crashing here till my place chills out," she drawled, flopping onto the couch, legs crossed, and eyes daring him to argue as she kept texting, her grin sharp enough to cut glass.

Thirty minutes later, the air crackled with Nikki's signature taunts. She leaned back, smirking, firing off her usual jabs: "What, still no girlfriend? Bet you're jealous Zack's getting laid while you're stuck babysitting his bratty sister." Her laugh was loud, almost cruel, as she watched him squirm. "God, you're such a virgin, it's pathetic," she teased, leaning closer, her voice dropping to a sultry whisper. "Tell you what, I'm feeling generous. Impress me, and maybe I'll throw you a bone—a kiss, you sad little boy." Her eyes gleamed with mischief, daring him to take the bait, fully expecting to keep the upper hand.

But he flipped the script. The kiss wasn't the clumsy peck Nikki expected—it was bold, practiced, and left her reeling. Her mind screamed, How's this nerd kissing like a damn pro? Her body betrayed her, a shiver running through her as she jerked back, breathless, her cheeks burning. She scrambled to recover, shooting him a glare. "Don't get cocky! I didn't cum, okay? I just... felt sorry for you, you fucking loser," she spat, crossing her arms and looking away, but the heat pooling inside her told a different story. "Fuck," she muttered under her breath, her bravado crumbling as she realized her usual game had backfired.