After a few minutes Nikki said to me that she wanted me to do something to her that Neil never would and that was to "fuck her in the arse". I always ...think there is something so sexy about a woman talking dirty and being filthy and saying what she wants outright. So as she got down off the table she turned around and faced the table, dropping her panties to the floor in the process, she then lifted her skirt back above her ass and reached round for my cock as I stood behind her, I reached over. In a few moments it was time to do it for the first time.I waited and then the door opened.The man walked in still wearing his clothes. ''Get up'' he said as he locked the door.He walked around me and looked at my naked body.''Hmmm nice. Young flesh is always good'' he said.''Your excited huh? Yes that's very clear to see''''On your knees now!!!'' He yelled.I got on my knees and he yelled: ''Now get back up''.''Very well my toy you know how to listen. That's good''.He walked toward a desk. He. Then, they are done, and Ana leads Serge away. It is my turn. And it is repeated. I am told to stand this way. Sit down. Stand back up. Eventually, Ken orders me to make my dick hard. I am nervous and it won't go all the way hard. I try to think of the money, but it will not get all hard. Ken says it is okay, because I have a big dick anyway. More posing. With dick hidden, with dick out. I never realize how tiring it is to be a model!Then Ana brings Serge back in different clothing,. And I don’t know how these girls get to know all that?She smiled and I said, “It is late now. Go to your hostel or mess (Because she was staying with her boy friend then) and come back tomorrow morning early so that we can again check your urine, in the mean while take this tablet.” She left and I slept. Next morning she knocked on my door and I welcomed her in and she had come in her night suit only, as her boy friends chamber was near by. I invited her inside and asked her to collect her.