She was cool about it as we had never declared that what we did was love making, it was good old fashioned sex – good sex.Shortly after that my brot...er informed me he was dating her.I spoke to her privately and asked her if she was going to tell him we had been sex partners.She said No. She said she enjoyed our relationship but she didn’t feel it was necessary for him to know of our intimacies and that it may cause problems if he knew. She asked me if I would never say anything that may hurt. I came in for some joking as they couldn't believe a "mere male" was able to design such an amazing bedroom. I might've been a god, but I was still only a male. In this case, a male who'd shamelessly copied other people's good ideas, but I didn't tell them that. To be fair to myself - a highly justifiable practice - I'd added quite a few good ideas of my own, which the house had described to the women during their poking around:Mirrors could show the viewer what they looked like from any point. "Huh, well yeah then that's the basic concept of it. You just grab your dick and rub your dick, pretty much. Although I guess there's quite a bit of technique involved and you really sometimes need to put in the work to find the sensitive spots," I said, getting kind of thoughtful about how much practice I'd put in to masturbating and how much technique I probably had now that she would have to learn at a much older age than me if she wanted to."Would you... would you be willing to teach me how. “What do you think, silly?” said Sally, loudly. “If I had my way, women would all work and take care of the important stuff, and you men would be used for … well. Helping us unwind at the end of a long day, which I sincerely hope you’re doing to my Sister each night”. I was a little shocked by this comment, as Sally didn’t normally speak of anything like this. “Umm, of course … I do” I said, my face turning red. “Oh, I know you do” replied Sally, an even bigger grin on her face than earlier..