Carolina Sweets and her stepbrother Justin Hunt are hanging out when Carolina asks to see Justin's erection. Justin agrees, and before long has his stepsister's lips wrapped around his stiffie. When Carolina's adoptive mom Richelle Ryan walks in from her nursing shift and spies the kids locked in a deep throat BJ, she's instantly turned on. She pulls herself together enough to confront the kids, at which point Justin confesses that his dick is always hard and he thinks he may have a medical condition. Since Richelle is a nurse, she offers to take a look.

Entranced by Justin's hard dick, Richelle gives her diagnosis that Justin needs to cum. Before long she has peeled her clothes off so her stepson can lap at her trimmed twat and suckle her big breasts. When Richelle leans back with her thighs spread, Justin takes the invitation to slide home between his stepmom's thighs. Neither of them know it as Justin fuck Richelle, but Carolina has snuck back into the room and she finds it hot as hell to watch.

Once Richelle notices Carolina, she invites her adopted daughter back to enjoy the fun. Richelle takes the opportunity to show Carolina plenty of new moves, like giving a stiffie ride in her creamy pussy, sucking cock the right way, and lifting one thigh to get even deeper penetration. When Justin finally cums, he covers his stepsister's belly in jizz.