Me and wife Bobbie are not very possessive, we’ve been married just over 20 years, in our early 50’s, still fit, in good shape, Bobbie has a great figure, lovely boobs, shapely legs that always look good in a mini skirt, stockings, or classy tights, high heels, and we are mature enough not to get bent out of shape if we’re at a party and get off with someone we fancy. Normally it means a lot of snogging and groping and not much else, neither of us want to pick up any diseases so we go so far and no further – until recently that is. We enjoy our sex, all positions, and indulge two or three times a week. Like all men and their wives I fantasise aloud with Bobbie about seeing her with another man. She poo-poo’s it, saying I’d never let it happen, I’d get too jealous if we ever got to the point of me watching her with another man, promising instead to be ‘very naughty’ with one of the three or four guys at work who keep asking her out. Our American friends Denise and Al had a July 4th party a few weeks back in their garden flat in Belsize Park. Six of us had early dinner there first with rest of the guests arriving from 9 onwards. One of the dinner guests was a very good looking 30’s black American, Gil, in London for an IT conference. He was a great talker, intelligent and a great line in dirty jokes, had us all laughing and as the meal progressed he and Bobbie became engrossed with each other, Gil didn’t do much to hide his interest in her boobs, on show in her push-up bra and black and gold low cut top. We all helped clear away the dinner things, wash up, clear the furniture away, and put out the dips, bread, wine and beer for the party guests. There must have been a good 30 people at the party and as Denise and Al’s flat is a labyrinth of halls and rooms I soon lost sight of Bobbie but as it was a hot evening the party had spilled out onto the communal gardens. I went out for a smoke, joining a small group of fellow sinners, thinking it must have been over an hour since I last saw Bobbie when, think of the devil, she brushed past me, arm around Gil’s waist, his around hers, her stilletoes in her hand. I watched transfixed as the seams of her stockings disappeared into the shadows, my mind racing at what they were going to get up to. I gave them a few minutes and walked down the garden, careful to hide myself away in the shadows provided by the shrubs on the border. As I neared the bottom of the garden I heard a series of moans, ‘oh my god that is so good…’ then saw a blonde on her knees sucking off a guy, recognizing her as Suzie, one of our fellow dinner guests, but the guy she was sucking definitely wasn’t Graham, her husband. In the darkness I could just about make out the shapes of Bobbie and Gil. She was against a tree, leg up, knee resting on his waist, both snogging very passionately. That went on for a few minutes, then I saw Gil pull away and Bobbie drop her head and could clearly make out what she was saying, ‘Jesus, you’re so big, how did you get that way? Guess it’s true what they say about black guys being well hung….’ she sliding slowly to her knees before taking his erection in her mouth. Over on my right I heard the guy give out a ‘jeez..’ guessing he must be filling Suzie’s mouth with his cum and a few moments later I saw her get up, both walking out of the shrubs and up the garden. By now I was also very turned on, my cock fully erect, and I eased it out of my chinos, excited at long last I was watching my wife with another man, a good looking black guy, and one who was obviously well endowed although I could not make out all the detail in the dark. I heard Bobbie murmur her enjoyment as she sucked and Gil begin to give out little moans of growing ecstasy. As I massaged my shaft, I strained to see their shapes and hear what was being said. After about 5 minutes I heard Bobbie, ‘don’t cum in my mouth…I want that monster inside me…want to feel it doing me some good…’ I saw her stand, Gil’s shape change slightly, then Bobbie, ‘wow! that is so fucking good, you’re so big! Christ, you must be up near my tits…now fuck me!’ For the next 10 minutes I watched as Gil pumped Bobbie as her enjoyment grew, ‘…yes, yes…fuck me, fuck me…come on, come on, fuck me, fuck me..’ then another, ‘oh jeez, you’re not using a condom…fuck I hope you’re not going to give me anything…’ Then another few minutes and I couldn’t mistake Gil’s moaning was a signal he was about to cum. And he did, he letting out a ‘oh my god, that is so fucking good!’ followed a few seconds later with Bobbie, ‘jeez, how much did you shoot…feels like I’ve got a fucking dairy full of cream up there!’ I made out them kissing then Bobbie dropping her head to suck Gil’s cock for a few minutes before they both began to walk back up the garden. I hadn’t cum but put my massively large cock back in my boxers and gave Bobbie and Gil a few minutes before returning to the party, slipping through the crowd to the kitchen to get a fresh drink. I circulated and ended up in the lounge, lots of couples slow dancing, ‘Hi darling! How are you? Enjoying the party?’ It was Bobbie, her make up and hair perfect, seams straight and high heels on. We danced, my erection still big, me pressing it against her stomach as we danced, her hands around my neck, both of us kissing, she breaking off, ‘well, is that a weapon of mass destruction you have there or are you just pleased to see me?’ I smiled, ‘…why don’t we go to the end of the garden and fuck?’ She gave me a quizzical look, ‘…no, darling, too public…what if someone sees us?’ ‘They won’t, we’ll be in the dark…let’s go…’ I pulled her hand and she followed. I found the tree she and Gil had used and the look on her face told me she knew I had seen her and Gil. She said nothing but kissed me passionately, fingers stroking my erection through my chinos, eventually unzipping me, dropping her head to take my cock in her mouth. Here I was, just 30 minutes after she’d been sucking Gil, Bobbie was sucking me, I felt really horny, my cock a good inch or more longer. ‘Do you want me to fuck your mouth or pussy?’ She gave me one of her little girl pleading looks, ‘why doesn’t my husband go inside my pussy, over Gil’s sexy hot spunk?’ I didn’t need a second invitation and pulled Bobbie up and pushed my erection between her legs. She eased away her thong, soaked with Gil’s cum, and lifted her body up, then down, my cock sliding all the way inside her pussy. She began to ride up and down in increasingly fast strokes, we kissed passionately, she breaking off to moan her enjoyment, me kissing her nipples through her top and bra. ‘You liked your wife being fucked by that big black cock?’ It took only a few minutes before I climaxed, letting out a little ‘jeez, yes!’, pulling her down onto my cock, me shooting deep inside her, the two of us kissing very passionately, Bobbie breaking off, whispering ‘so good to be fucked by my husband…’ I held her close, licking her ear, ‘I want my wife fucked by other men…good looking men, young guys, big cocks…’ She bit my neck, ‘Darling if that’s want you want, and I do, then…let’s do it!’ Gil had left the party to get back to his hotel to receive a call from his wife in San Francisco but we made contact with him via Denise and Al and he came round for dinner the night before flying back to the US. I wanked as I watched them on our bed enjoy a 69, Bobbie doing her best to accommodate Gil’s very large cock in her mouth, she obviously enjoying it, bringing him off, swallowing every last drop of his cum, Gil biting deep into the top of her thigh, leaving a very large love bite. Ten minutes later she had sucked him up hard again and this time I joined in, Bobbie sucking me off as Gil fucked her doggie style, me shooting in Bobbie’s mouth a good five minutes before Gil filled her pussy with his cum. He eventually went limp, Bobbie taking him off to shower with her, where they fucked again, Gil dressing, waving goodbye as he shot off to his hotel. Bobbie put on new make-up and a new pair of black holdups, ‘That was a fantastic evening darling…why don’t you finish it off on a high, give your wife a good fucking…’ She sucked me up hard, lay back on the bed, legs wide open, my rock hard shaft going inside her wet pussy for a final fuck, me on a short fuse, my spunk filling Bobbie’s pussy within a few minutes. Well, that was a month ago and we are looking on websites for some suitable single young men for threesomes while Bobbie’s just had her second date with a guy at work, says he has a good sized cock, might be willing to have a threesome with us.