I was already trained not to cum without her permission, but for this week I was given an additional instruction. I was not permitted to have an erect...on. Should I have an erection, I was to record the time, place and circumstances and the length of time of the erection. During the erection, and when waking up and before going to sleep I was to repeat "My cock and balls belong to my Mistress." The week went quickly. The next thing I knew I was dressed in a suit and tie, outside my Mistress'. It was Jayne. I tried to smile, look relaxed and act nonchalantly. She didn’t say a word – just beckoned me to follow her. We went through to another room and she locked the door behind us and moved towards me.“How long have you been fucking my husband?” she said.“What? I don’t know what you’re talking about,” was all I could splutter out“Yes you do. I know what he’s like and you’re very attractive so I’m sure he’s tried and I bet you’ve let him.”I turned away as I’m not good at telling lies. Now I had a mouthful of cum as well. The cock and cum filled my mouth completely. I was delirious, almost drunk with the feeling, the taste and the smell. It felt so smooth and warm. I opened my mouth to take a quick gasp for air and cum mixed with spit spewed out and ran down my chin. There was one final moan from beyond the wall and the cock was unceremoniously pulled from my mouth and disappeared through the hole. I knelt there for a second, gasping for air, feeling disappointed that my. "I decided right then I wanted to distance myself from these sick people. I just didn't know how. Shawna would want to know why and I couldn't tell her what her best friend was really like.Therefore I decided to just keep my mouth shut. I guess it didn't really make Jason a different person; the only difference I could see might be having to invite Kevin everywhere too.The food was done by time they got back from the store. I wasn't looking forward to an awkward dinner with my new unwanted.