Your big sister is such a cock tease. She has had several “boyfriends” who worked hard to woo her, but she never put out. She is always dressing in sexy, skimpy, provocative outfits. She posts pictures of herself, revealing almost everything, but hiding the important bits. The dirtiest suggestions come out of her mouth, but she never does any of them.
As her little brother, you have perhaps experienced this worst of all. You obviously had no expectation of getting anything from her. But the things she wears around the house: panties and little thongs, bra, cut-off t-shirts. Sometimes she moves through the house in just panties, covering her boobs with her hands. She does it just to get a reaction out of you. She looks at you and giggles. It seems like she always catches you when you have a boner. She knows what she’s doing, and she’s just downright evil.
So it’s actually not a huge surprise when a group of guys from her school approach you. They want to get some revenge.
The thing is, they need your help.
You’re a lot younger and a bit smaller than your sister, so there’s no way you could overpower her. But you can tell them when your parents will be out of the house. You can unlock the door.
And for that, they will gladly help you have a piece of her.