Sibling Rivalry
From Create Your Own Story
You are an older brother and you have either twin sisters or one sister. Your sister(s) bring sibling rivalry to a whole new level. In the case of the twin sisters, they are always trying to outdo each other, which you use to your advantage by encouraging them to do sexual things with you in a contest. In the case of your sister, she is always following you around, which you use to your advantage by teaching her a secret game. Either way, you are going to slowly convince your sister(s) to allow you to fuck them and a lot more.
Are you:
