I asked her what he had seen and she told me he had seen ‘everything’ she didn’t know how long he had been watching hher but when she looked up ...he was totally nude. I was furious and ushered her back into the block with me. Just like the men’s block there was a half dozen separate shower cubicles. ‘he was in that one she told me’ But he had clearly gone. He had left a small wooden stool of some sort that he had used to stand on and to make things worse there was a large amount of semen on the. I could tell by how hard his cock was that he had always wanted to have one of his students lying prone over his desk. I started to tickle his balls with my fingers as spit drained from my mouth and covered my eyes. "Oh Christ," he said. "That is it, worship that cock!"He started to buck wildly as he roared with pleasure. His balls twitched in my hands then cum erupted into my mouth as he held his cock still and waited for the cum to stop spurting. Finally, as my mouth started to overflow with. This was his first conference, so I explained how things worked and which sessions and speakers were worth attending. Unfortunately, the keynote speaker knew everything about his subject, but he could put a hyperactive kid to sleep. I suggested that we sneak out and meet some of the people that he should know. There were several vendors there and I introduced Bob to them. Most of them invited us to their "cocktail parties" later that night. Bob seemed excited about them, but I told him to be. Mark headed off happy at what he had seen.The next day Mark was in the derelict building where he spent his day, he never went to school it saved him getting hassle, nobody missed him, the authorities never bothered about him not being there. Mark heard a noise looked over the edge and saw Sara walking about below him, he watched as Sara made her way to the stairs and then out of his sight, a minute later Sara appeared on the floor where he was, she looked at him smiled said ” you ok” Mark.