I guess this all started out of sheer boredom in our sex life. My wife and I have been married for 18 years, and for the first few years, we made love like animals in heat, going at it often up to three or four times a day. Though my wife is pretty straight-laced, she would let down occasionally, and we managed to fuck in every position imaginable. We even pulled out the video camera once in while. Kate is about 5'3", 125 lbs., with brown hair, an ass that's perfect, and tits that are absolutely gorgeous (they are very firm for a 45 year old with 3 kids). I have loved her big nipples and extra large aureoles since the first night I laid eyes on them. One thing she does well and that is pleasuring herself. I particularly love to watch her masturbate with her vibrator, or even better, her assortment of dildos. She usually prefers to suck my dick while she's doing this, and I suspect, though she would never admit it openly, that this would be a fantasy she would like to experience, if she could only push her puritan instincts aside for awhile. Having perfected her masturbation routine, she can become very wet in quick fashion, and I love to eat her soaked pussy once she puts down her vibrator.
Recently, though, with the task of raising three kids, our sex life has become extremely routine. I have tried to spice things up during our lovemaking by playing porn videos, and bringing in "fantasy" lovers. My favorite fantasy is to have her fuck another man while I join in, or just watch. If it's not a complete stranger in her fantasy, it's usually my older brother David, which is fine with me. As kids, my brother (we're about 2 years apart in age) and I sucked each other's dicks a few times, and at the time, it was a pleasant experience, though my desire for this kind of activity ended there. My brother has a distinct bend in his dick, and we have kidded him openly about it in the past, and based on Kate's comments during our "fantasy" lovemaking sessions, I think she is secretly attracted to this curiosity.
I never thought that this game we played would ever go beyond the fantasy that it was, but a couple of weeks ago, it did just that. David's company relocated him and his family to a neighboring state, but occasionally, business would bring him back home for a day or two at a time. I was at work one Friday afternoon, when he called me at my desk from his car phone, and asked if he could stay over at our house for the night, since the conference he was attending wouldn't conclude until that evening. I knew that it would be just Kate and I that night, as our kids had planned to spend the night with friends, as they often do. I told him that he would be welcome, as nights alone with Kate recently had been less than sensational, due to all the distractions present in our life. I called Kate and told her of the evening plans, and she was fine with it. We decided we would grill some steaks and hang around the house and visit with David.
David turned into the driveway just as I was pulling the steaks off of the grill, so we greeted each other and went in the house, and, along with Kate, enjoyed a nice quiet dinner and a bottle of wine. By the time we finished dinner and cleaned the dishes, it was almost 9:00 p.m., so rather than watch another night of boring television, we decided to open another bottle of wine and break out the playing cards. Kate and I used to play Gin Rummy all the time, before the kids came along, and she would usually beat the hell out of me at it. We played a few hands, and pretty soon the wine had disappeared. Kate's tolerance for alcohol has always been extremely low. It had always been a running joke between her and I, that, after one wine cooler, she was "good for the weekend". That Friday night, the wine had loosened her inhibitions quite substantially, as she started joining in with mine and David's sexually oriented jokes and comments. We kept up the sexual banter, and had a lot of fun. I didn't give it a second thought, as I knew this was where Kate always drew the line. When David jokingly suggested we play strip poker, and Kate agreed, I was caught off guard. I must admit, I was skeptical of her intentions, as I knew she would never follow through with it, especially since she didn't know much about poker to begin with. With that, Kate snatched up the cards and began shuffling the deck. As she dealt, I continued to watch her, looking for clues about her intentions. "Five card, deuces wild" she said, as she laid down the remaining deck. David and I were still watching her to see what would happen next.