Your sister

Clearly, your sister would be the easiest to corrupt our of all of your family. Even though you had seen much less of her now that she was in college, you were assured that she was just as promiscuous as she had been before. She had never hesitated to try and fuck whichever random guy she found when she was feeling horny or bored, which was often.

And now, having arrived just yesterday, she was masturbating freely in her room. You couldn't just let the opportunity pass.

You walked to her door and **** it open, taking advantage of your bulkier muscles. Yet, when you entered, she didn't seem to notice the intrusion. She had put loud music on, to mask her moaning, and her eyes were closed as she masturbated with a small thumb-sized dildo.

You smiled as you closed the door and walked in front of her. Your cock was getting fully erect as you saw your attractive sister naked in her bed and imagined how she would turn into an even sexier succubus, her body remade to Lilith's image.

There were many ways you could take her, each one better than the other.