So I quietly go in (we have upvc dors so are quiet) and walk up the stairs as quietly as possible. We have mirroed doors on our wardrobes andthey face...the bed and are viewable just from the top of the stairs.What I saw I never expected it was my wife laid naked on the bed with a head between her legs. The shape of the ass sticking up didnt strike me as that of a man in build. I stayed where I was watching trying to figure out what I was seeing it soon became clear as a head then emerged from. I fucked her at a furious pace.She moaned loudly as she had orgasm after orgasm again and again. Her cunt leaked copious amounts of her love juice, then I came in a furious spending as I pumped load after load of my juices into her.Suddenly, it was all over. I jammed my cock into her as far as I could. I felt another orgasm arrive as my cock expanded painfully. Joyful spasms of intensely painful pleasure broke over me.Zoe and I lay there for a long time as we recovered our breath. Suddenly we. After a minute of this she rammed her bonded wrists into his head sandwiching his face between the two perfect boobs of his sister. Billy took this as a catch 22. She was beginning to like him, but he couldn't let the slut control him he came out and grasped her throat and whispered deadly into her ear. "You're the slut, I AM the master not you. Got it?" Yes...master."Billy grinned from ear to ear. She was ready.Billy undid his slut sister and took her to the washroom that had been renamed. Then I got a call from my cousin brother that he was coming to meet us. He invited us to visit his place.We went on his bike and reached his home. We had some chats, adult chats, and had red wine and Tequila. Around 11:00 pm, he got a call from his girlfriend, and he told us that he had to leave for some emergency. So we asked him to go and he went.He left, and I started watching a movie on the laptop. My cousin told me that she was going to sleep as she was exhausted. I said, “Ok, you go.” And.