I talked to Katie the next day and we sorted out that she had an IUD and wasn’t seeing anyone outside her home besides Toby. And now me. And I agree...d they could have sex so long as everything stayed that way. Strange, talking to her about having sex with my son. It also turned out that Katie had had sex with her mom, but that’s another story. And, Katie admitted, Toby had told her about the two of us masturbating… and fucking. Damn kids Back on the bed with Katie… we were chatting about nothing. Sub even started to think –hope– that perhaps the whole discussion at the beginning about anal was simply to make a point. After all Master had never really shown an interest in using that hole. That is until… About three months into the Master/slut relationship Master informed slut that the time had come for Him to ‘fuck that slutty ass.’ Master is justifiably fond of his penis and says that normally he wouldn’t want to put it up a dirty asshole, but that proper training requires discipline,. So that afternoon I showed them the 11 to 13 year old tape. This one explained puberty, all the emotional and physical changes that boys and girls go through. They divided the tapes for boys and girls with one tape each. I just ran both of them back to back. It seemed funny that they would only talk about the boys or about the girls and not both sexes. As I was running the tapes, I saw all three kids taking notes. They were actually treating this just like any other school assignment. Good.. Sucking cock has always been such a turn on for me, and this cock is no different. Without the use of my hands, I cant get a good rhythm, so I have no objections when my head is held immobile while thrust after thrust his prick hits the back of my throat. I hardly notice that someone is fingering my pussy, and someone else has placed his cock in my hand. Ive gagged several times, but in the position Im in I cant take him in my throat like I would like. It doesnt matter, with a loud pop he pulls.