My wife and I got married in the 1970s. We were deeply in love and wanted to share a life. She was the smartest, most beautiful and desirable woman I had ever met. She was a little over 5 foot tall, had long dark hair that came to her ass, luminous skin, breasts that stood naturally firm and out, she seldom wore a bra, a gorgeous ass and an overall curvy look. She was also an exhibitionist, showing as much as she dared. I was a fairly average person. A red head with a swimmers body, wide shoulders and slim hips. I had an average endowment of 6.5 inches. We had a great sex life: sex in public, any position, her flashing people in racy clothing and a constant exchange of fantasies. Society had gone through the sexual revolution of the 1960s and into the risqué 70s. Sex was in the air. Women wore very short mini skirts, gauze tops, skimpy halter tops and tiny bikinis. Men wore bellbottoms tight at the crotch and, speedo swim suits and gauze shirts. I look back at the fashions and wince. Everyone smoked pot. We were a very social couple and went to a lot of parties where there were a lot stoned people, psychedelic music and a lot of fooling around by married couples. We watched it all and thought it looked like fun but it just wasn't for us. One night we went to a party that got particularly raucous. We got really stoned and drunk, As the hour got late the hostess announced that we should all go skinny dipping in her pool. It was a warm summer night with a full moon. There were about 20 people with several single men. You said, let's go and we started stripping. Once you were naked you spent a few seconds the pool lights preening and displaying your body. We jumped into the pool. There was a lot of groping and fooling around. Someone turned on some music and you and I went to the shallow end to dance. It was a soft romantic song and we clung to each other's naked body. One of the single men came up beside us and asked if he could dance with you. I said sure and smiled. He took you in his arms and you molded yourself to his body. I could see him brushing his prick against you and you had yourself wrapped around his leg. When the dance ended I could see that he had an erection. You came over to me with a flushed face and erect nipples. You wrapped your body around me and gave me a passionate kiss. Another of the single men had seen what happened and came over to us and asked if he could dance with you. I said yes. This time you wrapped your arms around his neck and rubbed your body against him. The next song started and you kept your arms around his neck, put your head on his shoulder and kissed his neck. At the end of the song you two kissed passionately, tongues exploring each others mouth. When you came back to me you looked a little sheepish but very turned on. When we got home we rushed into bed and we made wild animal love. You were soaking wet and made loud sex sounds - Ohh, Ahhh, fuck me, fuck me. We both came explosively. We didn't mention the pool incident. A few weeks later we went to a costume party. You wore a black bustier with a Rocky Horror Picture Show theme and a pair of short tight nylon short shorts. Your breasts brimmed over the top down to your nipples. I went as a cowboy complete with leather leggings. The party was at a large beautiful house. The buffet was fantastic and really good wine and pot were abundant. The music was soft and romantic. During one of our dances your bustier slipped down a little and your nipples were peeking out. One of the guys you had danced with at the skinny dipping party came over and asked if you would dance with him. He took your hand and led you out to the dance floor. You left your nipples showing and you molded yourself into him. You rubbed your nipples into his chest and rubbed your body on his. I should have been jealous but instead I was very turned on. In the next song you put your arms around his neck and cuddled into him. You started looking up at him, put your head on his shoulder then softly kissing his neck. He looked over at me and I smiled. He started running his hands all over you and I could feel you sigh. After the dance he whispered something to you. When you came back to me your nipples were engorged and your face flush with desire. You pulled me to you and gave me a loving kiss. I leaned into you and whispered "are you having fun flirting and dancing?". Then I leaned down and asked you what he had whispered. You blushed, hesitated and then said he wants to get me naked and make love to me all night long. I was both nervous and horny. You danced with him a few more times and each time got more bold and sexual. The night came to an end and I took you home. When we got into bed we attacked each other in a sexual madness. I was talking dirty to you "would you like to fuck him?", "would you like to be fucked by both of us?", "would you suck his cock?". I asked if you wanted to be a dirty girl. You went into a frenzy and started moaning and saying yes, yes, yes. Then I whispered "can I watch you fuck him?" You moaned yes, yes, yes, watch me fuck him. We both trembled with intense orgasms. We held each other tightly and fell asleep in each others arms. In the morning we were both shy and nervous. I went to work and said we should talk later. I was confused by my excitement and your wantonness. When I got home we had a drink and tried to talk about it. Finally we got on the internet and went to some sex sites. We found the term wife watching and read some stories and looked at some pictures of the wife fucking and the husband watching. They aroused us. I asked if you wanted to fuck other men. You blushed and asked me if I wanted you to. I didn't know what to say, but then I blurted out yes but I had to be there to watch and participate. We looked at each other and we had no idea about how to make this happen. The next weekend was a party at a friends house. You wore a very short red mini dress and no bra. We went and were having a good time. Later your friend from the costume party showed up. He came right over to us and introduced himself as Mark and said he was glad to see us. You told the old Mae West joke about are you glad to see me or is that a pistol in your pocket. We all smiled. A slow song came on and he asked me if you could dance with him. I smiled and said sure. The two of you went on to the dance floor to a slow sensuous song. You put your arms around his neck and molded your body to him. You both swayed to the music and rubbed your bodies together. You danced another slow song with him and this time you put your leg between his and shamelessly rubbed your leg against his prick. When the two of you came back to me your nipples were engorged and he could hardly hide his erection. I pulled you to me and I could feel your excitement. I whispered to you to go and take your underwear off. You loved dancing with no underwear on. You came back from the ladies room and shoved your wet panties into his pocket. He looked shocked. Another slow song, you cling to him, your arms are around his neck, your head on his shoulder and he's murmuring into your ear. When you come back I take you aside and say do you remember those wife watching pictures. You say yes, but it would be me who asks. I ask the two of you if you're having a good time. This is the big moment. I hesitate, then I ask Mark if he'd like to come back to our place for a nightcap. You blush and he nods yes. We take our car and he follows. We don't talk about what's going to happen but we're both happy and horny. When we get to the house I excused my self to make drinks and you two settled on the couch. When I get back to the room you were in a passionate embrace. I handed out drinks and put some slow romantic music on. I love to watch you slow dance. You clung to each other and rubbed your bodies together. He looked at me and I smiled. He started caressing you. He stroked your breasts and puts his hand under your dress. I come up behind you and pressed my erection into your ass. Then I said let's take this into the bedroom. We went in and I put on a single soft light. I pulled you to me and murmured in your ear that this will fun and exciting. I am harder than I have ever been and my cock is straining against my pants. My heart is racing and my breath shallow. I want to yell stop, but even more I want to watch you in the throes of passion with Mark. Mark watched for a minute then takes you in his arms. I reached down and pulled your dress over your head. You were gloriously naked. I said to Mark we need to get out of these clothes. Once we're naked he took you in his arms and embraced you passionately. You were both caressing and rubbing against each other. He laid you on the bed and I sat in a chair watching. He laid down beside you. There was no rush we all knew what's going to happen. He kissed you and took your hard nipples into his mouth and gently circled them with his tongue. Then he skimmed his hand all over your body. You whispered to both of us that you don't want this to stop. You put your arms around his neck and kissed him softly and then you start moaning. The two of you kept making out and enjoying each other bodies. I sat in the chair panicking but so turned on. You started stroking his cock and it was leaking on you. You pushed him on to his back and sucked and licked his cock until it was wet with your mouth. You ran your hands up his legs and fondled his balls. He moaned. Then you straddled him and took his cock and rubbed it on your wetness and put it in you. You both paused and savored the moment. You started moving up and down and I can see your wetness on his cock. His hands are all over you, caressing your body. You start to plunge up and down and start moaning. Soon you're both in a sexual frenzy and you start making sex sounds and words "fuck meee", Ohhh, Ahhh, don't stop, don't stop. Your dirty talk drove him over the edge and I could see his cock throbbing while he comes in you and you come on his cock. I can't sit anymore and move over to the bed and hugged you from behind while your orgasm continued to shudder in you. When we all stopped we were a little embarrassed but glowing from the sex. You turned to me and held me and told me you love me more than ever, thank you thank you. We told Mark we've had a wonderful time and that you and I need some time alone. He gets dressed, kisses you and caresses your breasts. We say good night and he leaves. When he's gone you ask me if we're all right. I hug and caress you. I feel the heat from your body and move down and start licking your combined juices from your cunt. You moan and shudder with another small orgasm. I then move over you and put my cock in your freshly fucked cunt. We go at it in a frenzy, you moaning and talking dirty - fuck me, fuck me, watch me fuck, Ohhhhh. We both come, you for the second time. We cuddle and talk. We agree that we had a wonderful time. In the morning you're still glowing. We relive the night and know we'll do it again.