My BF turns me in a sex slave

Finally, my BF captured me in school on Monday. Escaping from him for days had driven he quite mad. He looked like a fierce lion when he caught my collar and looked at my face.  After hard slapping my face,he said that he cannot accept leaving without a word . But I think the truth is he cannot carry out some dirty deals and satisfy his customers by selling my body to them.

Not only mental humiliating, I was forced to have a reluctant sex with him in his room. He fucked me like a dog for hours; moreover,  a punishment was imposed. In order to have more filthy sex photos of me, he lent me to his friends as a sex slave for days without asking my opinion. I don't know why should I agree this stupid suggestion, maybe I didn't want to break up with him immediately.

The man behind me in photo is not my BF, he is just a friend of my BF. They have a group sex with me in that room, I lived and served them at this dark room for days. Those young boys loved to pinch my tits and watched my face during sex. They even forced me to swallow sperm after they cum in my mouth. I was naked all day in this room; thus, anyone in the room can slap my ass, finger my pussy, and grasp my heavy tits freely. My BF not only compelled me providing changeless sex service, but also asked they humiliate me in words publicly.

"You are my dick suck, Taipei cheap whore." a short man said. My BF smiled.
"Drink this cup of sperm, my cock-lover." another man said. My BF grinned.
"Take my pee, bitch. You will have more breast sex with us later." a bald man said. My BF laughed.

In the end of day, my BF allowed people have group sex with me in that he loves to watch and take photos of my painful face. I just let they screw me in their way to ease my BF's angry. Maybe my BF is a pervert, but I cannot leave him anyway.