Jealous Stepsis Wants Stepbro's Cock

I couldn't believe my eyes when I caught my stepsister Mia spying on me through the crack in my bedroom door. She'd been acting weird all week—glaring at my phone every time it buzzed with texts from girls, slamming doors whenever I mentioned hanging out. But now, here she was, her hand slipped inside her tiny shorts, biting her lip as she watched me stroke my thick cock on my bed. "What the fuck, Mia?" I snapped, but she didn't run. Instead, she pushed the door open, her cheeks flushed, eyes locked on my throbbing shaft. "You've been teasing me for months, stepbro," she hissed, stepping closer, her perky tits straining against her crop top. "Flaunting that big dick in your gym shorts, ignoring me for those sluts. I'm jealous, okay? I want it. I need your cock inside me." Before I could protest, she dropped to her knees between my legs, her soft hands wrapping around my base, pumping slowly as her tongue flicked out to taste the precum beading at my tip. "Fuck, you're huge," she moaned, swirling her mouth around the head, sucking greedily like she'd been starving for it. I groaned, tangling my fingers in her hair, thrusting up into her wet heat as she gagged and slurped, drool dripping down her chin onto her heaving chest. She popped off with a gasp, stripping naked in seconds—her shaved pussy glistening, nipples hard as diamonds. "Jealousy's made me so wet for you," she whispered, climbing onto my lap, grinding her slick folds along my length. I grabbed her ass, guiding her down as she sank onto me, her tight walls stretching around every inch. "Oh god, yes! Fill your stepsis up!" She rode me hard, bouncing with desperate fury, her jealousy fueling every slam—tits jiggling, moans echoing as I pinched her clit, making her squirt all over my balls. "You're mine now, stepbro—no more other girls!" I flipped her onto all fours, pounding her from behind, my cock slamming balls-deep into her spasming pussy until I exploded, flooding her with hot cum that leaked down her thighs. We collapsed, panting, but her hand was already stroking me back to life. "Round two," she purred. "I want every drop."