Rob Carpenter suffers from a severe case of sex addiction, which causes him to jerk off in the most unexpected places and leave surprises for his stepsister Chloe Cherry. Chloe confronts Rob about his preferences after discovering jizz in her towel after getting out of the shower. When she gets to his room, she discovers him making out with her underwear! In a desperate attempt to get him to quit leaving salty surprises around, Chloe offers to give him a handie. Rob does concur, but he demands access to Chloe's seductive lips when her hands are unable to release him. At last, that works, and Chloe even does Rob a favor by ingesting his cumshot. Unfortunately for Chloe, Rob breaks his half of the bargain. She offers to fuck him this once if he goes to counseling for his sex addiction after discovering that he had jacked off into her pajama bottoms. Rob agrees since he has been craving his stepsister's pussy wrapped around his dick for a very long time. Before he knows it, he's buried balls deep in Chloe's avaricious snatch, her breathy gasps of joy singing in his ears. To Chloe's amazement and dismay, he can't help but load her soft twat with a creampie of sperm. A couple of weeks later, Chloe goes to Rob's room to find him. At first, he is defensive because he has been attending counseling as scheduled and hasn't made any mistakes, but Chloe humbly admits that perhaps he isn't the only sex addict in the home. Rob gleefully paddles at his stepsister as she kneels face down on the bed, refusing to give up on her request for another try. Rob gives Chloe a favor by pulling out this time to coat her muff in jizz when they ride to the peak.