Hurry Before Our Other Step-Sis Comes Home

Me and my step-sister got wild the second the house was empty. Door barely shut before she's grinning like trouble, yanking her little tank top off, tits bouncing free, then she bends over slow and shimmies those tight booty shorts down so her ass is right in my face. That perfect peach flexes while she spreads a little, flashing pink. She climbs on, grabs my dick, and slides her slick pussy down every inch like she owns it. Feels so goddamn good my balls tighten right away. I flip her over, push her face into the mattress, and hammer her doggy, slapping against that fat ass so hard the bedframe shakes. Right when she's whimpering she’s gonna cum, we hear keys in the front door—our other step-sister’s home. We scramble up, yank pants on, pull the blanket crooked, just barely covering the smell of sex before she walks in.