[F4M] [Script Fill] [Handjob] [Incest] [I know you like her] [I think she's hot too] [Mentions of deepthroat] [Mentions of ruining her] [Break her] [A bit rough] [Show that little whore who she belongs to] [Barely-legal teen] You and your boyfriend (listener) have just arrived back home after visiting his family. It was his younger sister's eighteenth birthday, and you couldn't help but notice how he wouldn't stop staring at her. Not that you mind. In fact, you find it kinda hot that he's attracted to her, so much so that you're planning to bring it up next time you get intimate with him.