Rosalyn Sphinx and her friend Andi Rose are hanging out and making fun of various boys on their social media. The girls are still snickering when Rosalyn's stepbrother, Robby Echo, comes home from school. He doesn't bother the girls, just heads up to his room. Andi tries to ask Rosalyn's relationship with her stepbro and Rosalyn defends him, saying he's a good guy. After asserting that all guys are assholes, Andi gets up and runs off to Robby's room to prank him. Andi barges into Robby's room and tells him that it's life and death, he has to pull his dick out for his sister. Pushing Robby onto the bed, Andi wraps both hands around his cock and rubs it for a hot minute until it's nice and hard. Then she laughs at him and takes off.

Robby of course goes to the living room to see what's going on. He lets Rosalyn comfort him by rubbing his back and listens as Rosalyn tells Andi that what she did was really mean. Instead of apologizing or showing any remorse at all, Andi suggests that maybe Rosalyn should just fuck Robby since she's so into him. Rosalyn confesses that if Robby wasn't her stepbrother, she'd probably date him. When Robby turns around to ask what Rosalyn means, she rubs her hand up and down his dick and tells him that he deserves a release after what her friend did. Pulling Robby's fuck stick out, Rosalyn leans forward and starts sucking. At first Andi is dismissive, but eventually it becomes clear that she's super turned on by what she's seeing. A forgiving sort, Rosalyn invites Andi to join in since she's really the one who should be delivering the apology. After a few uncertain licks, Andi realizes she's having fuck sucking cock with her friend.

The girls are super horny from their double BJ and Robby has a very nice dick, so it's only natural for them to take things further. Still wearing her miniskirt, Rosalyn takes the first ride in reverse cowgirl while Andi fondles her clit. When Rosalyn climbs off, Andi is there to slip her thong aside and impale herself on Robby's fuck stick so she can ride him in cowgirl as Rosalyn licks her thighs and ass. Eventually, Rosalyn can't help but lean back and diddle herself as she watches her BFF ride her beloved stepbro. Next, Robby gets Andi onto her back so he can keep on doing her as she pulls Rosalyn down to sit on her face for a pussy licking. The girls switch spots so that Rosalyn is in the middle taking a doggy style pussy pounding from her stepbro as she feasts on Andi's creamy center. Both girls encourage Robby to cum in that position and he delivers, pulling out to pop his load all the way up Rosalyn's back. Satisfied, Andi finally agrees with her friend that girls hold lots of sexual power.