The morning after I seduced M, we made love again over two hours(and that was the first occasion on which she wore stockings in her life - a sheer grey pair which she jokingly noted I had provided so thoughtfully for her comfort. I could go into detail regarding some of the things we did after that - the day she first swallowed my hot seed, and the day on which my cock first passed the virgin gate of her sphincter were highlights of many sexy sessions over the best part of 7 months. Of course, we did a lot of sexy talking before, during and after our sexy antics, and so I came to discover some things which she had not told her boyfriend. One of these was that she had watched a lot of threesome porn whilst a 6th former, and that it turned her on. The germ of an idea was formed in my mind.
My old 3sum partner G came to stay when M was also staying, and we all went out for a decent Chinese in town. He could see how horny the two of us were, and I said to M, once she and I were naked and I was buried deep inside her moist passage, that I reckoned he had his ear to the wall and was wanking himself in time to the evident rocking of my big brass bed. This intimation of a gentle voyeurism sent her into a massive orgasm, and G - I'm sure - must have shot his own load as the two of us came off together loudly.
G said nothing at breakfast, and was out for most of the next day. M and I, of course, spent the day naked and around lunchtime I splashed a luscious pearl necklaceof hot seed between her soft breasts and up to her gorgeous neckline. It was after I brought her to her own orgasm with my fingers that I told her how G and I had seduced my wife years ago. I could see the signs of interest, and an application of my fingers again to her pink and aroused clitty brought M again to a trembling climax. The upshot of it was, we agreed that we were going to see if G was up for a session that night - and wondered whether he was to be only the fourth man to take intimate posession of her womanly treasures.
We said nothing on G's return, and all decamped for a curry into town. Walking back, with me holding M's hand, I asked him, quite simply: 'M and I were wondering whether yoiu'd like to join us in a threesome tonight'. I have never before seen him lost for words, but he was on that night. 'Well, ... yes' he stammered. She took his hand as well as mine, and the three of us strolled home. Though not married to me, as I told her, M was soon going to be a shared wife.
