Bill did the same with the string: torned. He came down the machine."Keep going, Lili! "I said. Lili was showing her naked ass to all the people there... me, Bill, the photographer, the manager, the girl at the entrance desk. Even if no customer were inside the working out room. Bill put his hand between her thighs like before, but now she was naked. "I'll check if your internal muscles do work well!". And he put one and then two fingers inside her pussy as she was still climbing the mechanical. I can feel her slightly sink her teeth into my flesh as she bites, sucking on it…“Please, Please Erica. The torture has been long enough. Please taste me. I want you.”I lean my hands down, caressing her hair as I move my hips towards her again. Encouraging her to finally give into something we’ve both wanted for so long. Her head moves slightly towards me as I feel the tip of her tongue run along my moist wet slit. I lift my hips up towards her as I let out a groaning moan and I grip her hair. . action...I knocked on the door and waited for it to be answered by Tina.I was really surprised when she answered the door ... surprised by the way that she was dressed (or her lack of dress to be specific). Tina was wearing a skimpy black bra that only just covered the lower parts of her tits and nipples. Her tummy was bare, with a small belly button piercing dangling from it. Lowering my eyes further I found a very small black cloth patch on her mound with thin strings to her waist."Hmmm .... She was tall as me, with fat in the right places. I have heard rumors that she was a true slut.She used to fuck one senior and she fucked one of our professors when he almost suspended her. A preliminary exam was conducted in our classes. Most of the students were helped by me resulting in a pretty good percentage. Hence they threw a thank you party for me. I was not much of a party material. I exchanged in pleasantries and tried to catch a corner with none, slowly sipping in my drink along.