BGYS/Younger than you with small tits
From Create Your Own Story
Your younger sister has been a bitch for several months now. When she is complaining about something, all you want to do is stick your cock in her mouth to shut her up. You have tried to push the thoughts into the back of your mind, but the fantasy of forcing your dick into her mouth is exciting. The idea of looking down at your sister's face as she stares back at you is enough to give you a hard on no matter how much time has past since you blew your load the last time.
As much as you would like to force her to suck your dick, it is far better to just blackmail her into it. Force can cause a lot of problems, far less than blackmail ever would. You know there are a few options to choose from, and know your parents are out for the weekend. Not only do you have the opportunity to blackmail her, you also have plenty of time.
Besides, blackmail opens a lot of other options. Not only would it make your sister's mouth available, but the rest of her as well.
You blackmail your sister by: