I couldn't move a muscle.
My heart hammered so loud I was convinced the renovation crew downstairs could hear every beat. Below me, the obscene wet rhythm of Mia's fingers pumping in and out of her pussy filled the tiny room like the sluttiest secret broadcast.
Slurp… slurp… slurp…
She had stopped pretending completely. The sheet was kicked all the way down. I could picture every filthy detail: those long toned legs spread wide open, black thong pulled viciously to the side, two fingers buried knuckle-deep while her thumb rubbed furious circles over her swollen clit.
Then she moaned my name.
"Alex…" Breathless. Desperate. Like she was tasting every syllable. "Fuck… Alex… right there…"
My cock jerked violently. The front of my basketball shorts tented obscenely, thin fabric stretched tight over the swollen head. Pre-cum had already soaked through, leaving a dark, sticky wet spot. Veins bulged along the shaft, pulsing with every frantic heartbeat.
She went faster. The bunk bed frame gave a tiny telltale creak as her hips bucked up to meet her hand.
"Mmm… yeah… just like that, little bro… give it to your big sister…"
I bit down on my lip until I tasted blood. My balls were drawn up tight, aching. My hand actually twitched toward my waistband — I was dying to stroke myself — but I didn't dare move. One shift and the entire bunk would shake.
Another wet squelch. A broken gasp.
"God… I'm dripping just thinking about you…"
The mattress beneath me shifted.
Bare feet padded across the floor.
The ladder creaked — once, twice.
Her face suddenly appeared right beside my hip, inches from the massive tent in my shorts. Moonlight painted her features silver: messy dark hair, flushed cheeks, glossy parted lips. Her eyes locked onto my throbbing cock like a starving predator.
She didn't look shocked.
She looked ravenous.
A wicked smirk curled her lips. One hand kept lazily pumping between her thighs while the other hovered just over my bulge.
"I knew you were awake," she whispered, voice thick with smug, bratty triumph. "You've been lying here the whole time listening to your stepsister finger-fuck herself… and you're this hard for me."
I couldn't speak. My throat had locked up.
Her eyes flicked up to mine, sparkling with pure sin.
"I was only gonna jerk you off or suck it…" she breathed, hot breath ghosting over the soaked fabric. "But now I need this cock inside me."
Her fingers hooked my waistband and yanked down hard. My thick cock sprang free, slapping wetly against my abs. A heavy bead of pre-cum rolled down the shaft.
She licked her lips slowly, eyes dark with hunger.
"So what's it gonna be, Alex?" she whispered, already climbing higher, one knee sinking into the edge of my mattress. "You gonna keep pretending to sleep… or are you finally gonna fuck your bratty stepsister raw right here on this bunk bed?"
The room went dead silent except for the thunder of my pulse and the slick, wet sounds of her fingers still working her dripping cunt.
Four months.
We were so completely fucked.
End Ch 02.