Step-dad makes me fuck my step-brother

Starts off with sucking Step-Dads cock. It's a normal thing for me to do. Step-Dad has been touching me and fucking me and making me suck him for years. I am used to it now. He finishes in my mouth and I swallow as I always do to make him happy. I hate the taste though. I look up and my step-brother is standing in the doorway. Watching. I tell him to leave, but quickly realise that step-dad has asked him to come. He wants him here. I ask if my step-brother knows what has been happening all this time between me and step-dad. They both admit that my step-brother has always known and I can't believe he didn't do a thing to stop my step-dad. They were probably both laughing about me behind my back. Step-Dad tells me it's finally my step-brothers turn to have a go on me. I object, but whats the point? step-Dad always gets what he wants anyway. Step-dad just sits there jerking his cock as he watches him fuck his step-daughter. Training his step-son to use his step-daughter the same way!