As we were kissing I was really fondling her boobs over her swimsuit. As I was fingering her clit over her suit, she was getting into it. She finally ...aid, “we better stop, Dave will be out soon.” I relented but said, “ok, but let’s continue this when were out of the tub and back in the bedroom.” Happily she said, “Yeah, as wet as I am right now (she meant her pussy, not the hot tub) I’m game.” My mind was racing, after the hot tub and we are back in the room is Dave going to watch us screw?. It was done, or at least the first basic module was done. I had no idea how many errors there were, but the rough draft was done.As I sat back down and fed the draft through the compiler, Donna came in with a mug of coffee, and said, "I just made some fresh coffee for you. You sure pound on that keyboard. I can hear you in the reception area when you are really burning it up. I think you should order several replacement keyboards if you pound that hard on them all the time."I pulled up the data. “What about your mum and dad,” I said. “Won’t they hear us?” “Don’t worry about them. Just punish me, darling Steve. Slap me hard.” I was desperate to make love to Sarah, but I knew that it was only going to happen after I had “punished” her, so I decided to do as asked. I raised my hand and brought it down on the soft fleshy part of Sarah’s right buttock. The sound was like a gun shot and Sarah cried out in pain. “Oh god, please hit me harder.” said Sarah, and I dutifully did as instructed and. Sam often enticed me in her shiny skimpy suit, seduced me to fuck her when Jill was not around, but I always turned her down.Now, somehow, the situation was different, I accepted my lost willingly. After all, this matter would become an advantage for me. Therefore, after a short discussion, the two couples made a decision that night. Twice a week, that is four days a week for the ladies, we lend our wife to assist and maximize the intercourse, in other word “threesome.” One rule only, pussy is.