Lacy Lennon and Rosalyn Sphinx are hanging out in Rosalyn's living room when Rosalyn's stepbrother, Damon Dice, joins them. They chat for a few minutes before Lacy excuses herself to go to the restroom. When Lacy is on her way out, Rosalyn's mom, Katie Morgan, pulls her aside to share her concern that Rosalyn might have an unhealthy attraction to her stepbrother. Lacy promises to keep an eye on Rosalyn, but the second she gets back to the living room she spills the beans to Damon that Rosalyn told her the stepsibs had hooked up once. Rosalyn and Damon both deny it, but Lacy pushes on to ask if they would do it again for her. When the siblings don't immediately agree, Lacy offers to tell Katie what she knows.

Eventually, Lacy pulls Damon's hard dick from his shorts and strokes it in front of Rosalyn to try to entice her friend. Rosalyn holds out for a few more moments, then give in to her urges. She starts sucking Damon down, deep throating her stepbro as Lacy alternates between helping and masturbating as she watches. Then Lacy urges Rosalyn to climb onto Damon's dick to ride him. Although this hot chick loves to watch, Lacy also wants to be part of the adventure. She eventually climbs onto Damon to give him a reverse cowgirl ride as Rosalyn watches and rubs her clit.

Lacy continues to get it as she bends over on her hands and knees to enjoy a doggy style pussy pounding. From that position, Lacy can also double down on Rosalyn's enjoyment by finger banging and eating out her friend. Rosalyn scoots forward with her thighs spread wide next as Lacy sucks and strokes at both her friends to help them out. When Damon is about to cum, Lacy makes sure her hands are on his cock to hold him inside Rosalyn's pussy for a creampie that keeps it all in the family.