Riley Star is Jay Romero's new stepsister. The recent merger of their families happened so quickly that the new stepsiblings were never introduced until Jay arrived home from college one morning and discovered Riley dozing off in his bed. Riley has been sleeping there, and he finds out that she's willing to share the bed. Afterwards, Riley burrows into Jay's bed to inquire about borrowing his vehicle. She offers to clean his room, suck his dick, and do his schoolwork. Though Jay tries not to give in, who can refuse a gorgeous blonde who's promising fun? Riley blows him, and Jay knows he has to tap that as soon as possible. Riley lets Jay fuck her on her knees since she's up for a good time. Then, like the cowgirl she is, she mounts him. Riley takes a moment to extract her own fluids from Jay's fuck stick, then she goes full cowgirl on him. As Jay finishes her off and pulls out to cover her in his come shot, Riley is left whimpering on her back. The new stepsiblings acknowledge that they will need to spend a lot of time together in the future.