The sister, who is shocked to learn that her beloved brother has gotten his first girlfriend, becomes jealous of her. She tries to send a message from her brother's phone saying "Let's break up," and even starts saying things like, "How dare you get a girlfriend when you have me as a sister!" She's really losing it! But while she's drunk and asleep, the sister sneaks in and starts riding him, shaking her hips! And despite everything, it feels incredibly good!
