When Ivy Wolfe overhears Carter Cruise on the phone, she realizes her sister is into girls. Deciding to play a trick on her, she pens a letter and forges the signature stating that it's from her lover. She gives it to Carter and walks away smiling. The letter asks Carter to be ready at midnight, to have the back door open and the lights off. When Ivy walks into the room at the appointed hour she whispers to Carter in order to make sure she doesn't blow her cover. Carter has followed the instructions in the letter and has no idea that her sister that about to seduce her. Ivy walks behind her and starts caressing her breasts. When Carter starts speaking, she shushes her, asking her to cover her eyes. Carter does as she's told while Ivy sucks on her neck. Ivy lays her down and starts playing with her pussy. She climbs on top of her and starts grinding her pussy on Carter who is so turned that she's almost screaming. When she finally glances down, she realizes that it's not her girlfriend but Ivy. Carter pushes her off of her asking what the hell she's doing. Ivy reminds her that they're stepsisters and that it's not really a big deal. Carter tries to get a word in but before she can, Ivy throws her back down on the couch and kisses her passionately. Carter is worried about their parents. What if they find out? Ivy assures her that this will be their little secret.