Intrigued by the moans next door, I drop by my co-tenant's place, only to find her sprawled on the bed, fingers buried deep in her glistening pussy. Her big ass bounces as she rides her hand, her face contorted in pleasure. I can't help but join in, my hard cock throbbing in my pants. She notices me, grins, and beckons me over. I comply, sliding my thick dick into her wet, welcoming cunt, pounding her hard until we both collapse in a sweaty, satisfied heap.