Stepbrother's Thick Cock Claims My Virgin Ass

Lily had just turned eighteen when her mom married Jake's dad, thrusting her into a whirlwind of boxes, new addresses, and the hottest guy she'd ever laid eyes on—her new stepbrother, Jake. At twenty, he was all chiseled muscle, tousled dark hair, and that cocky grin that made her stomach flip. They were thrown together in a sprawling suburban house, sharing a bathroom and thin walls that amplified every sound. From day one, the air crackled with tension, her virgin body humming with forbidden curiosity every time he walked by.

It started that first afternoon. Lily was unpacking in her room when she heard grunts from across the hall. Curiosity pulled her to the cracked door, and there he was—shirtless, sweat-glistened abs flexing as he rummaged through his dresser, fresh from a workout. His gym shorts clung low on his hips, and fuck, the bulge. It was massive, thick, straining obscenely against the fabric like it was pissed off and ready to burst free. He caught her staring in the mirror, his green eyes locking on hers with a smirk that sent heat flooding her core.

"Like what you see, little sis?" Jake drawled, turning fully to face her, not bothering to hide the way his cock twitched visibly under her gaze. He adjusted himself shamelessly, the outline thickening as he stepped closer. "You're blushing hard. Virgin eyes like yours ain't seen a real man's dick before, huh?"

Lily's cheeks burned, but she couldn't look away, her thighs clenching as moisture slicked her panties. "I... I wasn't—shut up, Jake." She bolted back to her room, heart pounding, but that image burned into her brain—his thick, veiny monster begging to be unleashed.

The days blurred into a torturous tease. Breakfasts where his bare foot brushed hers under the table, lingering just long enough to make her squirm. Hallway bumps where his hard chest grazed her tits, his breath hot on her neck as he murmured, "Careful, Lily, or I'll think you're doing it on purpose." Poolside lounging, her in a tiny bikini, him in trunks that did nothing to hide his semi-hard bulge when he cannonballed in, splashing her and pulling her laughing into the water, his hands "accidentally" cupping her ass cheeks.

Nights were worse. She'd hear him jerking off through the wall—low groans, the slick slap of fist on flesh—and her fingers would dive into her soaked pussy, circling her clit to fantasies of that bulge splitting her open. She was a virgin, untouched everywhere, but god, the ache in her ass grew with every teasing glance.