In a cramped apartment, a curious girlfriend invites her tattooed friend over, unaware of her boyfriend's plans. As the two women chat, he sneaks in, positioning himself behind his girlfriend, hiking up her skirt, and plunging into her from behind. The unaware friend watches, shock turning to arousal as he pounds his girlfriend, their moans filling the room. The friend tentatively reaches out, touching her friend's clit, making her gasp. The boyfriend, not missing a beat, reaches back, inviting the friend to join. She hesitates, then gives in, fingers sliding into her friend's wet pussy, syncing with the boyfriend's thrusts.