I greeted him and shook hands and I realised that was the hand I had been jerking off with a minute ago, he was tall and lean and had a deep voice, so...we came inside the house and I talked about the product he was here to look at and I made the sale so I sat on my office chair to start to do up an invoice, the gas has gone from the chair so it sits abit to low, he stood next to me and told me his details so I could type them in, then he said to me what that window there you have open, the one. "And just what do you think your doing?" she asked with a grin on her face. Without a word I kissed her and slid my hand into her sweatpants. I found a pleasant surprise, she wasn't wearing any panties and was freshly shaved since last night she had a landing strip. I moved my fingers down her smooth crotch until I found her mound and started rubbing her slit. She was already hot and wet. She let out a soft gasp and I stroked against her engorged clit. I grabbed hold of her sweats and yanked. Clearly, our accord on an open marriage was working for her as well as for me ... and yes, my sisters overheard her in the act of taking her former schoolmaster more than once inside her body. For that matter, it was evident pretty soon that Manny knew that he was being overheard in the act, because he seemed to really play up the action himself for our benefit.That was when Jenny told me that Manny wanted to talk to me, and sure enough, I actually heard him speak."Hey, kid. Jake, right? I. "Hi sweet Jen" I said and bent to kiss her cheek."Hi big bruv" she said and stood up to wrap her arms around my neck,"Are you ok, I mean, you know, with what we did last night?"Her answer was to kiss me tenderly and press her breasts against my chest, I ran my hands down over her back and discovered that she seemed to have a penchant for wearing my tee shirts and nothing else!"I'll take that as a yes then shall I?" Mmm, definitely" she giggled and ground herself into my groin suggestively..