Mum smiled and kissed me on the lips. "Be good now, son."Sally removed the blouse and skirt as she came over to us. "May I mount him?" She asked mum. ... wanted to cry out "No!" but mum nodded and I behaved myself for now. However, my cock was having none of it. It started to go limp as she got on top of me. "Where is it?" Sue asked."Oh dear!" Mum replied. "Perhaps he really does need a break. We can all sleep in this bed tonight and then he will fuck you in the morning." Mum added. My relief was. I got up and my mind just drifted off to the thought that she had already noticed my acting skills. I was surprised that I have already caught her attention!Me: Yes, ma’am. (horny.)She: Okay. So, introduce yourself to me and all.I saw a wicked smile on her face which made her juicy thick lips glow! I introduced myself to her, giving her all my attention and forgetting all those students and the girls of my age who were present there. She told me to come into the front row. I was all alone by. " he said then telling me to add weight onto it. I looked at the weights saw how heavy each one were. I picked up the 50 pound one and struggled to put it up there. He watched me with his grin growing on his face, this was embarrassing. "No not that one." he said. I dropped it and took a breath. He got up and picked three hundred pound weights and slid them on the bars. He did it like it was nothing....He laid down on the bench and gripped the rail. "Alright stand over me." he said. I stood. Paige and mum were lip locked in an erotic, swaying clinch, mum's hands on the teenager's adorable little bum cheeks while Paige had a hand inside the front of mum's thong playing gently with her, undoubtedly soaking wet pussy.Feeling somewhat resigned to the fact that this wasn't going to be my night, I went into my voyeur mode and settled for playing host, cooking the steaks, pouring the champagne and rolling the joints.It wasn't all bad though, Paige insisted on keeping the dope in her pussy.