Brother helping sister getting revenge on her boyfriend

Alex Adams is happy to have caught his petite stepsister Aria Skye in the shower so he can spy on her while masturbating. She catches him stroking it and calls him out on it. When she says she's going to tell their parents, he swears he'll cut it out. Later, when Aria finds out that her boyfriend is cheating she decides that Alex is the perfect person to help her get even since she can send a picture of her sucking someone else's dick. Alex agrees and snaps the pic as Aria goes to town licking and stroking.When Aria's boyfriend isn't as mad as she thought he would be after receiving the pictures, she decides to escalate the situation. She asks Alex to fuck her and take some pictures. He agrees, but only if he can cum since he didn't get to the last time. She warms him up by giving him another blowjob, then spreads her thighs so he can rub her clit until her whole pussy is nice and wet.Getting on her hands and knees, Aria is all smiles as Alex pushes his cock deep inside. He takes her twat doggy style, but soon she rolls onto her back to suck her own cream off his stiffie. Alex rewards her by pounding her tight little twat as she begs him to cum on her pussy. He does as Aria asks, pulling out just in time to cum on her bare pussy so he can snap a picture of her cum covered fuck hole.