Helen and I are a 62 year old married couple, both overweight and none too pretty. We have a reasonable sex life but my stiffies are not what they used to be. Since the advent of the internet I’ve progressed from an avid viewer of porn to meeting a few bi guys for cock fun. For almost two years, I’ve been meeting Jack a divorced guy, 20 years younger than me. We have fun together watching porn sucking and fucking. We share an interest in vintage motorcycles, he has a small collection and I’m an admirer. Over time we have become friends. Helen knew nothing of Jack and seeing him always involved subterfuge until we decided to “come out” as friends using motorcycles as the vehicle. I bought a bike and we would go out on them and could go back to his place for fun whenever we liked. He became a regular visitor at our house. He’s is very taken with Helen and enjoys sniffing and wearing her used knickers. We’d talk about the two of us fucking her. Helen liked Jack straight away and quickly became very comfortable with him. Jack and I had fewer opportunities for sex when Helen started to come out with us on the bikes. The three of us were going to a rally the next weekend and went to choose leathers for Helen. In the process Jack was treated to flashes of her in her underwear struggling in and out of leathers. Later that week as we were getting ready for bed, I told Helen that he mentions seeing her in her undies every time I talk to him. “You don’t mind that you gave him a thrill do you? “He’s been on his own for years.” “I suppose but it doesn’t seem right does it and I'm old enough to be his mother?” She said. “But you're not his mother. We’re 62 and he’s 42, I think we’re old enough not to worry about what seems right. Anyway look what just thinking about you showing off has done.” I said. Releasing my hard on from my pants. We had sex and talking later I said. “Aren’t you flattered that a good looking young man gets turned on by a glimpse of your knickers?” “Flattered? I don’t know. What I don’t understand why you seem to like it so much.” She said “Neither do I, I just got turned on when Jack saw you in your undies.” I said. “I believe it’s not uncommon for older men to get turned on sharing their wives with younger men.” “Sharing!?” She said, puzzled. “I don’t know really, proud of you, showing off, sexy fun, that sort of thing.” I said. “ Google it.” We had planned camping for the weekend’s rally but Jack rang the next morning and suggested we stayed over at a travel lodge if he could get rooms. We had him on speaker, Helen nodded her agreement so I said. “Just book one family room there’s two or three beds in them.” Helen looked a bit dubious. “I’ll try but there aren’t too many of those.” He replied “Don’t worry if you can’t get one just book a double, the beds are huge there’s plenty of room for the three of us.” I said. “Ok I’ll do it now.” He said, obviously excited, and rang off. “That’s OK isn’t it? You don't mind Jack sharing our bed do you? I said. "I checked out wife sharing on the internet. Is it the bed or me you want to share?" She said. “Helen we are consenting adults. Nothing’s going to happen that we don’t want to happen. We don’t have many friends and on Saturday night we’re sharing a room with one of our best.” “Sharing a bed, probably.” She said. “Yes I suppose he’s not likely to pick a family room when he can pick a double. We don’t have to do anything. We can cancel if we want. It’s up to us. We’re just spending the weekend with our best friend.” After a minute I said. “I hope I haven’t screwed things up.” She sat next to me on the sofa and gave me a kiss. The phone rang. “I’m still trying to find something for Saturday night but I’ve got a room for Friday and it’s a double. I hope you sleep in the nude Helen, I do.” We laughed and laughed at his predictability. We set off at tea time on Friday, checked into the hotel at eight O’clock, we took our leathers off leaving the three of us in tea shirts and pants. We planned to go out for dinner, Jack went for a shower first. We hadn’t talked about sleeping arrangements all week. I whispered to her. “Are you going to sleep in the middle?” “Do you want me to?” She asked. “Oh yes.” I said. “So we can both make love to you.” “Are you absolutely sure that’s what you want?” She asked. “That’s what I want. I’m sure. I know Jack’s sure. I want you to be sure too. Are you?” I asked. After a few moments she said. "I don't know. It's a crazy idea. How can I?" 1 slipped my hand into her knickers and kissed her passionately. My fingers slipped easily into her vagina. "He's a sexy young man who want's you. I want you to enjoy yourself and." I wiggled my fingers inside her. "I can feel how hot and ready for sex you are. Aren't you?" "Yes I suppose." She said. “Come on get in the shower with him? Break the ice. You want to don't you?” Again she said. "Yes I suppose." I kissed her some more then helped her take the rest of her clothes off. We heard the shower start running. “Go and enjoy yourself.” I said and kissed her again. She hesitated with her hand on the bathroom door knob then opened it just enough to pass through and closed it behind her.