Amber Summer and Kimmy Kimm are BFFs who love to do everything together. Everything. They've decided to open a therapy practice together. When they tell Amber's stepbrother, Joshua Lewis, about their plan, he tells them that the only life experience they have is sucking lots of dick. Amber reminds Joshua that she hasn't sucked his dick yet, and therefore neither has Kimmy. That being said, they're definitely interested.Later, Kimmy is watching Joshua as he lays on the couch. Amber joins her with a dildo and they sneak up behind him. Shoving the toy against Joshua's butt, the girls inform him that they need pegging experience. He refuses, but he does agree to let them practice their regular therapy questions on him. Kimmy instantly begins asking questions about his feelings for his stepsis, Amber. Just the thought gets Joshua nice and hard, which leads Kimmy to ask if she can haul the salami out for him. Joshua tries to say that Amber can't touch, but Kimmy grabs her friend's hand to deliver a double handie. How can Joshua say no to that?The trio relocates to the bedroom, where Kimmy hops onto the D and goes for it in cowgirl. She ultimately talks Joshua into letting Amber go for a reverse cowgirl ride. Now that it's a full threesome, Kimmy gets on her back and lifts one leg in the air to invite Joshua back inside as Amber rides Kimmy's mouth. On her knees, Amber takes a doggy style pussy pounding until Joshua pulls out to nut all over his stepsister's ass. As the girls make out with cummy kisses, Joshua admits that their therapy was effective.