A younger sister is shocked when her beloved brother has a girlfriend for the first time. – Her younger sister is jealous of her and tries to use her brother’s phone to send her a LINE message saying “Let’s break up” and says things like “I can’t believe I’m getting a girlfriend even though I have a younger sister!” and it’s really crazy! – But while she was sleeping, her sister inserted herself into her and straddled her, shaking her hips! – But it felt so good!