Lexi Luna has the hots for her stepson Nathan Bronson. When Nathan gets into trouble at school for staring at girls' breasts, Lexi sees the opportunity to get Nathan exactly where she wants him: Inside her greedy pussy. She begins by confronting her stepson about his bad, creepy behavior. When Lexi catches Nathan predictably staring at her massive boobs, she instructs him to go to his room and change into his basketball shorts. They're going to play a game called "Mother May I," where Nathan must ask Lexi for permission to do anything at all.

Nathan begins by asking whether he can look at Lexi's breasts. He is denied permission. His next request is to go to the bathroom and take care of his erection. Again, Lexi says no. Instead, she leans back and slides her hand beneath her miniskirt to masturbate while Nathan watches. Giving Nathan permission to touch his dick in front of her kicks off some mutual masturbation. Now that Nathan is hard and ready, Lexi can finally get everything she's ever dreamed of from him. When Nathan requests some spit for his dry cock, Lexi goes ahead and uses her mouth to wet him down. That BJ quickly gets wet and wild, with Lexi popping those magnificent jugs out for a titty fuck.

Finally Nathan gets it into his head to ask if he may fuck Lexi like his daddy does. Lexi responds very much in the affirmative by climbing into his lap and sliding down to ride that hard cock with her boobs bouncing in his face. Turning around, she gives it to Nathan in reverse cowgirl. The couple relocates to the bedroom, where Nathan buries his face between Lexi's thighs to feast on her cream. Lexi gets back on top and goes for another hot and heavy ride. Then he gets her on her hands and knees to bang her in doggy. Spreading herself out nice and wide on her back, Lexi invites Nathan back inside. He tries to ask if he can pull out as he gets ready to cum, but Lexi wants that cum. Curling her ankles around Nathan's lower back, she keeps him buried inside to give stepmommy the creampie she craves.