Mackenzie Moss just got done watching a thriller movie and now she's appalled to shower alone in their vaca home. She asks her stepbrother, Seth Gamble, to guard her without peeking. Seth decides it'll be funny to prank Mackenzie, so when she gets into the shower he runs to the kitchen and seizes a knife to pretend to replicate the video's penultimate gig. Mackenzie runs off to her guest room to sob. Seth feels painfully, so he decides to apologize. Mackenzie asks why Seth is being such an booty since she thought he enjoyed her.Seth tries to apologize again, putting his palm on Mackenzie's hip. She calls him on it, but when he removes his palm she puts it right back, but higher. He takes the hint, frigging his sista beneath the towel. In come back, Mackenzie tugs Seth's pants off so she can wrap her lips around his hardon. Gargling him off, she deep throats Seth's hard-on until she can't wait another moment to mount top and start riding him. Mackenzie is so tiny that Seth finds he can do all kinds of acrobatics with his stepsister. He lifts her to set the pace as she rides him, then dominates her from above when she falls backwards onto the sofa. Getting onto her palms and knees, Mackenzie invites Seth to give her a doggy style cooter nailing. As he romps her, she begs him to jizz inwards. He obliges, glutting her with a creampie that drips down onto the couch when he pulls out.
