This was just to good to be true. "So Lisa you're my mistress now?"Lisa blushed "yes Mark I am your property. I have always wanted this, it makes me w...hole to be with you. Mom said I can not get pregnant, not till I am 18 but otherwise I am your's 100%!"I reached out and held Lisa's hand. "Thank you Lisa that is the most beautiful thing I was ever told" and I squeezed her hand."Mark even though your mother knows you're here please do not discuss it; as it is not polite."Now I was really stunned. “Do you want to be made to do that?”He shook his head violently.I looked at him in wonder for a minute. Then I stood up and pulled out my cock. I think I did it more to see what he’d do than because I actually planned to make him do it again.He didn’t move.I walked over to his chair and grabbed his head. He still didn’t move, not even when I forced my still flaccid cock into his mouth and began to fuck his face. I didn’t even have a hard on for Christ’s sake! He only had to keep his lips. They were both into it big time and watched them until they both came. Now I'm thinking, their only s older than me (their both 16), I want to do that so bad but I don't have a girlfriend. I turned around to go back to my room where I was going to relieve my hard dick while thinking about what I just saw when I heard my brother yell my name. Oh, shit, I thought and he was out in the hallway with me holding a towel in front of his dick. He was pissed and wanted to know how much I saw. I told him. I could still sense that the eyes of every guy in the office were still firmly planted on Trish's nakedness, as we simply stood there and started our wait for Jon to let us in. The secretary seemed to enjoy every minute and was in no hurry to let Trish and I into the office. Every second felt like a minute until I realized that we had been waiting for over five minutes as the guys just took in the scenery of Trish's fully exposed naked body. Some of the guys that knew Trish when she worked.