Romeo Price is a horny guy with a constant need to cum. He pervs on his adopted mom Alexis Fawx and his adopted sister Alexa Grace. First he sneaks into Alexis's room to watch her shower. When he jacks off to his mom bathing, he leaves his load in her hand towel for her to find. Later, he hides under Alexa's bed and beats his meat to his sis changing clothes until he busts another nut into her panties. Though he escapes before Alexa notices his mess, she eventually finds it. Alexis and Alexa agree that Romeo has gone too far and they need to teach him a lesson.
The girls settle on spiking the lotion Romeo uses to masturbate with curry powder to make his dick burn when he masturbates. Romeo falls into their trap, but he makes such a racket that the girls rush in to hush him before his dad hears the commotion. They agree to do whatever it takes to shut Romeo up, from blowing on his penis to cool it off to spitting on it and rubbing the lotion off. Alexis eventually agrees to try sucking the lotion off and encourages Alexa to do the same.
When Alexis realizes that nothing is working, she tells Romeo to sit on the bed so she can try putting his dick into her vagina with the hope that her pussy juices will calm the burning. The second he's inside her, Alexis makes it clear she likes her stepson's big stiffie. Alexa is eventually enticed to join in. She, too, enjoys a stiffie ride and then learns a lot from her stepmom as Alexis teaches them both the ins and outs of a wild ride in the sack, from pussy eating to various positions that they can fuck in. Their threesome may have been an impromptu accident, but everyone is satisfied in the end until Romeo busts a nut in his sister. The resulting commotion alerts Alexis's husband of the shenanigans that are afoot, leaving all three of them panicking.