My wife and I had been together for 4 years before she agreed to swing. I wasn't her first man, she readily admitted that any guy who bought her a drink as a teen could find his way into her panties, but she had been in a 20 year marriage before we met where her husband hadn't touched her for 10 years. Our first physical meeting we were naked within 10 minutes, she blew me and swallowed, then opened her legs and told me to please her until I got hard again. By the end of that day she had taken two loads up her cunt and two in her mouth, and had multiple orgasms herself. I had already told her I am bi, she found it exciting, like she said "if men can find 2 women sexy, women can certainly find 2 men sexy." So, 4 years on, involving another person had been a fantasy between us,and eventually she said we should find another guy, someone bi so we can both play. We joined a few swingers sites, as a couple, but despite setting age limits (we were both in our 40s and didn't want under 30s), and saying no married men we were overwhelmed by .... guess what....boys and men who's wives didn't understand them... So we joined a nudist site as we were both nudists. We were contacted by a guy, let's call him Dave, who lived a few miles away, unmarried but with a gf who might join in if we got on, and he was also bi. A few online chats later, both just text and a couple of video chats, we arranged to meet at a pub between us, the idea being if we liked each other we would arrange a hotel meet soon after. Well, the pub meet went fine, my wife (C) had a low cut top on with a bra that pushed her 50dd's up and out giving her a cleavage like the grand canyon. Dave could barely take his eyes off it, but we managed to agree that if we met he would be playing with, and played with by, both of us. Leaving the pub he got a quick kiss and a crafty grope of her tits, but I was the one discovered how wet she was when we got home. Fast forward about a fortnight. We had booked a room at a local travelodge, he was coming round to meet us at 7. At 6 C got into the shower, dried off, put new lacy undies on, a skirt and another low top. I was just going to get in the shower when my mobile rang, he had arrived about 30 mins early. Going to the car park I walked him to our room, he had brought a bottle of wine, I poured them both a glass, said I was going in the shower , and left them on the sofa. The mirror in the bathroom reflected the one in the room, I saw them put the glasses down, start kissing, and he didnt waste time going for her tits. I got in the shower, still watching them, he had her blouse off already and her hand was between his legs, when he said "Let's give D (me) a surprise ". He stood up, she did too, and they came into the bathroom, he pulled back the curtain, grabbed my cock, and went down on it. Don't get me wrong, no problem with that, but it was a surprise, so I said I'd be out in a minute and told them to get naked on the bed. Looking in the mirror again I saw them strip each other, as she dropped his trousers and underpants she dropped to her knees and started sucking him. When I came in the main room, still drying myself, he was lay back, one hand playing with one of C's tits as she sucked him. The look on his face told me everything, he might say he was bi but he was getting nothing from her ministrations, and was waiting for me. I lay the other side of him and joined her licking and sucking him, his silence stopped, he started to moan, both his hands started to play with me. I asked C if she wanted to watch us, she moved across to the sofa, legs wide apart, bringing herself off rubbing her clit. We moved around, hands and mouths on each other, when he said he was close to cumming I told him to shoot his load onto C's tits, he was disappointed I didn't take it but I was a bit pissed off he had lied, and he was too close to stop. She cleaned his cock with her mouth, he replaced her on the sofa, she got on the bed, I ate his cum off her, then we played for a while before she said she wanted fucking and we went into doggy. When I shot my load he came over and started to lick me as I ate myself out of C. We got more wine, and C asked Dave what he wanted next. He wanted me to fuck him. Did he want to fuck C as I did him? No just for him to be fucked. As you do when you're in a novel situation I recovered fairly quickly, C lubed him up, I put a condom on, and he leant over the bed. C sat on the bed and started masturbating him, I slipped in, and it seemed like seconds before he was shooting again. He pulled away from me, said he had to go, left us a £20 note as part payment for the room, dressed and left. C pulled the condom off, got me fully stiff with her mouth, and got on her hands and knees. Cutting the evening short we enjoyed more sex before sleep, but discussing it the next morning we both said it was really annoying he didnt want to do much with her, and if it was always like that we would be stopping quite quickly. Luckily it wasn't, the next guy played with us both, and was fun, other guys were more into her than me but I didn't mind, and we swung for about 10 years until the menopause stopped us. Edit to answer Breezers point... The impression he gave at the initial meet, and in the initial chats before that were that he was definitely interested in both of us, if he had come across as just wanting me it might not have made a difference to us meeting (C wanted to see me with another man), but we would have known in advance.