Your smoking hot girlfriend with perky medium tits and a juicy ass invites her ripped co-worker over for a threesome to heat things up. But this alpha dude with his thick, veiny cock takes total control right away. All three of you are buck naked on the bed, bodies tangled in raw lust. He's got your GF bent over, pounding her tight pussy doggy style while she moans like a slut, her face buried in the sheets. You're the pathetic cuck boyfriend, chubby and submissive, positioned behind him, staring at his muscular ass and heavy balls swinging as he thrusts deep. In one shot, he's gripping her hips, slamming balls-deep while she arches back, tits jiggling. Next frame shows him dominating you too, forcing your face close as he breeds her, precum dripping everywhere. Rough hands everywhere, her long hair messy, sweat glistening on toned bodies. He flips her around, makes her suck his massive dick clean from her juices while you watch helplessly. The humiliation peaks with him pulling out to blast thick ropes of cum all over her pretty face in a messy facial, some splattering your way. Bi vibes strong as he asserts power, making you submit to his will. This changes everything; he's joining your bed regularly now, turning your girl into his personal fucktoy while you jerk your smaller cock in the corner. Pure cuckold domination, forced bi action, and girlfriend sharing bliss.