DISCLAIMER:- The following text is sexually explicit and contains depictions of sexual acts that have been classified by the surgeon general as potentially dangerous and unhealthy. You must be a broad minded adult to read the text, and you must not make this text available to minors or to any person who does not wish to view it. Unprotected sexual relations with unknown partners is hazardous and we urge the use of condoms and safe sex at all times.

Wife’s sister and husband had been staying with us for nearly a week now as their new house was being built. They are nice enough people and her sister is awesome to look at. Her husband is rather a quiet guy but sort of sneaky at times.

As most guy do I had teased my wife at times about sex with some one else. The one night all of us were rather drunk and got to joking about sex and stuff. Both wives spoke up and said there was no way that they would have sex with anyone but their own husbands. Well we had an argument the next morning about something really stupid and then off to work I went.

I was feeling rather guilty so I left work early with the intention of making up to her. Well when I got home her car was in garage still and her sisters was also, so I walk in the house put my things in the den and then I hear this noise. I t was the type of sound that told you that something was wrong. So I start to walk down the hall way and then hear this scream that was sort of muffled as if it was in pleasure “Oh gooooddddd Ooooooh”. I look into her sisters and brother in-laws room and see my wife with her jeans around her ankles bent over with her brother in law fucking away at her, I mean they were really going at it. I was shocked and had this instant feeling of hurt. I thought at first maybe he had forced himself on her since her shirt was still on as were her shoes. She had her back arched and ass turned upwards as if she was really begging for it. Her hair was hanging in her face and was being tossed around and her tits were swinging back and forth and then ther
e was the sound of skin slapping as he rammed

Then I heard her say something muffled again like “ oh oh oh not yet”. Then he said how great she felt and stuff like that. I was almost afraid to move, but deep down inside I knew I had better bust in the room and stop them. I was just about to do just that when I noticed I was getting a hard on, I felt so terrible about it. Then I heard him say “ come on let me do it “ then she says oh what the hell just go for it. They moaning and grown for a few more minutes then he starts to cum inside of her. He was thrusting really hard into her and the slapping of their skin was so erotic. He pulled out of her and I could actually see the semen leaking from her then reality started to hit me, this was my wife cheating on me. At that point I had a tear in my eye and walked out and drove back to work.

Later that night I was so upset that I figured what the hell she had just fucked her brother in-law in our own house so I may as well cheat on her too. Well I had a few to many beers on way home and once I get there everyone is chatting and in good mood, her sister is sitting next to him and kissing back and forth, I thought boy if she only knew what I had seen. Well as the night went on I tried to stay away from any confrontations and tried to concentrate on what to do.

I was out ion the garage getting another beer and then her sister comes out and asks me if something was bothering me, told her I saw something that upset me today but was having trouble with why it had upset me. Basically I tried not to tell her what it was, later into the night after everyone was asleep I stayed up and fiddled in the garage trying to get my mind off of it, her sister came out and said she couldn’t sleep and wanted to chat.

After we both had several more beers and were giggling back and forth she came right out and asked me what it was that was bothering me earlier? Just then I caught myself trying to sneak a peek down her partially open robe. I asked her what she would do if she ever found out her husband was fucking some one else. She said she was not sure what she would do but would be very pissed off about it, since she was doing her best to keep him happy in the bedroom department. Then I told her I saw her sister my wife bent over taking it from her husband.

She just froze and had this totally pissed off hurt look on her face. I told her I was hurt as well and not sure what to do about it, we talked for hours about if I was not keeping her satisfied and stuff like that. Later she got me to come out and admit that it turned me on to see her getting fucked. I asked if her husband was satisfying her and then she said no he was just going thru his own motions and getting him self off and not her. That was when I told her it was him that I saw fucking my wife. She had an instant hurtful look on her face and started to cry a bit, I held her in my arms to console her for a while then she and I started to kiss heavy for a long time.

She pulled back from me and just looked into my eyes and next thing she said was “Its our turn to be satisfied” she grabbed my hand and led me into the house. We fell onto the couch and as we did her robe opened up and wow the body on her, was awesome and then instantly I got rock hard we made out for a while then I found myself sucking on her left breast and about to finger her pussy, I stopped a second and then she looks at me with tears in her eyes saying that she was not sure we should be doing this. I eventually agreed with her then sat up and looked her for a while, her nipples were hard as hell and the one leg was hanging off the couch exposing her moist pussy to me. I finally found some words and told her that she was right and we shouldn’t do this and how wrong it was. She looked at me and then said no one would ever find out unless one of us told.

I made comment about how great she looked and how I had secretly had wanted her for long time, she too admitted that same feelings, then as she leaned forwards she began to unsnap my jeans and said she wanted to go ahead and do it, she went down on my cock and began sucking and rubbing it, I was amazed I lasted nearly 10 minutes before I told her I was about to cum, her sister normally doesn’t let me cum in her mouth. A few seconds later she was sucking it down and wow did she do it good, every little drop she swallowed, then came up and asked if I had a condom in the house.

I was in seventh heaven having just gotten sucked by my sister in-law, my head was spinning and then I had to frown and tell her no I didn’t have any left. She asked if she could trust me not to cum in her then I said oh ya sure not a problem ( considering I had just shot my biggest load down her throat I was spent anyway) . Boyish mind was talking over and all I could think of was putting my cock in that tight pussy. Then she rolls onto me and tells me to let her do it and straddles me on couch, my cock was slowly getting hard again then she grabs it and guides me into her pussy as she lowers herself on to me

Words could not describe the feeling of her velvety smooth but tight pussy, she then begins to slowly rid up and down in sort of a grinding motion, and she had her mouth hanging open and had this intense look about her. I felt myself getting near ready to cum so I grabbed on to her hips and thrust into her hard a few times, then I stopped and she asked what was wrong, I told her I was about to cum so I stopped so she wouldn’t get pregnant from me. She fell down on me again and sort of giggled a bit thinking of how that would really be bad and a huge mistake for us to make. She got me to laugh about it too then back to humping she went, once in a while she would look into my eyes and ask if she should slow down or not and if I was okay. I just sat there and smiled telling her how great she felt.

This went on for a while longer and she really got off a few good orgasms and admitted she had not done that for a long long time. Then she told me it was my turn and to go ahead and fuck her anyway I wanted, I looked at her sort of funny and then she said I could take her fanny if I really needed to cum inside of her. WOW was I in heaven now, so many things ran thru my head at just that moment she told me that she had tried it a few times long time ago and that her husband was not into it. I told her I didn’t want to hurt her but thanked her for the offer, so anyway I get her to roll onto her side and facing the back of the couch and begin fucking her pussy, as I held her tight to me, was more like making love than a revenge fuck.

Well we both started to get really into it and eventually I got her in a doggy position and she starts to tell me to ram into her harder and hard, her words were driving me crazy and then I had to back off as I was about to cum. She got a little frustrated and then tells me to try her bottom, at that point I was into it and went and got some hand lotion off the coffee table and lubed her ass up as my cock was still in her pussy, was erotic to finger her ass and pussy. I came out and asked if she had ever had a dildo or another cock in her as she was getting fucked before, she said no but sounded fun to her. So there I was about to press my cock into her ass as she had her back arched up at me I looked down at her boobs swinging back and further as she moved. I was having trouble getting in and was hurting her, so she got on top of me and slowly put it in herself so it didn’t hurt her so bad

So on we go she eventually loosens up and is riding me really good, then I rolled her over and lifted her legs on to my shoulders, we stair into each others eyes as we fucked, me in her ass and now her hand in her pussy. She began to moan and almost scream in passion for a few seconds, then she tells me to get in her pussy one more time before I cum, so I do this and after a few minutes I feel myself boiling up and about to cum, the feeling was so awesome I had not felt it in long time, I told her to unwrap her legs as I was about to cum then she says “ Oh no no not yet I’ am almost there” my cock was working overtime and then I tell her it was now or a huge oooops was gunna happen, then she says” oh what hell just go for it and cum in me”. So there it was I thrust harder and harder then I start to cum, spurting huge loads into her womb. She orgasm at the same time and then we collapsed in each others arms

A few minutes later I went to get off of her nad as I slid it out of her pussy I could see all my semen leaking from her. I laughed a bit and so did she, and then she said that is was the most she had ever had inside of her at one time. She went to clean up and had her hand between her legs as she tiptoed down the hall to the bathroom as not to drip on the floor.

I sat there and got dressed and realized that her words during the sex sounded familiar and almost the same as when I watched her husband fucking my wife. I got up and walked down the hall to see if she was okay and as I looked into the bathroom I saw her bent over at the waist and realized how similar she and her sister looked. She has an awesome ass and I did get to fuck it for nearly an hour, it did look a little stretched out but I really enjoyed being in it. We kissed good night and off to our own beds we went.

The next morning she and I both got up late, and found my wife in the living room cleaning up and had a puzzled but peaceful look about her, then I ask if everything was okay and she tells me that she heard her sister and brother in-law fucking most of the night. I said nothing then into the kitchen I went for coffee, her sister walks in and then I told her about it and she has this totally guilty look. Tells me that she and I need to talk some time about what we did. Then of course I agree and suddenly my wife seems to be in bad mood I acted ticked at her most of the day and then later her sister and I are in basement and she tells me that her husband may know about last night. I told her that my wife was acting funny also and that we may as well come out and tell them.

That night things came to a head after dinner, her sister and I spoke up at the same time and tell them what we did and why, then as I am telling my wife how I saw her and her brother in-law fucking in the bedroom. She starts denying it and says how she was at the store all morning and had left right after I did that morning. Her sister yells at her hubby and asks what the hell he was thinking ………….fucking her sister not more than an hour after he had fucked her in the very same room and position. The yelling went on a for a while then I started piecing things together and we all figured out what I had seen was her sister and husband doing it and not my wife and him. I heard her voice and the words she said and then when we had sex she said the same ones. I felt like an ass whole just then and suddenly her husband spoke up and laughed a while.

MY wife had this totally shocked look on her face and then he says how he had fantasies about doing just what we had done. I apologized for what we did and as I sat there he looks at my wife and says that they owe us now and should make them watch as they fuck.

I figured he was just spouting off and would not do it but suddenly my wife stood up and walks up to him and says “ya lets show them how two people really make love”. I was in total awe and partially frozen as I stood there in door way. My mind was drifting off in a different world thinking I had just ruined my marriage and that I was about to be forced to watch her really do it with him. I looked up as if to ask them not to do this and I see my wife on her knees sucking his cock. It was a matter of seconds it seemed till he began Cumming in her mouth, she gagged a little but went ahead and swallowed most of it. I thought wow this was happening so fast and then he spoke up and made comment on how great it felt. His wife looked over to me and then asked if I was okay or not as she and I talk or actually whisper to each other they had left the room and went to our bedroom, by the time we got to the door he had her on her back naked and was pressing his cock into her pussy, she
had her legs up in the air and was almost begging him to put it in. He stopped and said he needed a condom and would be right back, she held on to him and said not to worry about it till it was time, so there they go fucking away, me watching my brother in-law fucking my wife unprotected. Both were moaning and groaning like crazy. His wife asks me if I was okay or if I wanted to leave the room. She then ushers me down the hall and into the other bedroom, we sat and talked about what we had done and about the potential consequence of me Cumming in side of her with out protection, she did admit that it was more her fault for letting it happen but really wanted to feel it spurting inside of her. We started to hear them getting louder in the bedroom and then we went to see what exactly they were doing since they had been in there for nearly 2 hours. As we looked in the room my wife was on her belly with pillow under her hips and he was just then pulling his cock out of her pus
sy with cum dripping from it, she was crying a little but had a smile on her face. We stayed back in hallway as so they didn’t see us then she asks him what he was thinking? He looks down at her and says what do you mean, “ I thought you wanted to do this and was enjoying it”. She says yes she enjoyed it but why he had to cum inside of her. He tells her that since she said not to worry about it till it was time, which he figured she was on pill or something and he could cum inside of her.

Well reality was slowly setting in on us, his wife had tears in her eyes and so did mine, she said she may end up pregnant now since he had cum inside of her. He asked if she was so upset about it then why she had put the pillow under her like that. She said it was a erotic fantasy thing she had wanted to act out but since she was willing to let him in with out condom she would deal with the consequences. He then starts holding her and kissing and fondling her body again, she looks at him and says that they really shouldn’t do it again since they screwed up once already and that she needed to go and douche out just in case.

He smiles and asked if he could do it one more time and then she could clean out. She looked at him funny and wanted to know why, then he said he wanted to enjoy it this time and when he cums not to be worrying about pulling out. After a long time of talking about it his wife motions for me to look at how she was rubbing his cock under the sheet. She tried to offer him head instead of Cumming in her pussy again but he was insistent on it and eventually he was on top of her in missionary style and humping away, she was screaming in ecstasy as he ramming into her, he was really doing it rough and hard, at one point she was hitting her head on wall as he ramming it in her. About an hour or so later his butt cheeks clinched and he was cumming in her, she dug her fingers into his ass as he came. When he pulled out of her there was a lot of cum leaking and then he moved up to her face and made her suck it clean for him, she tried not to do it but he forced t in her mouth.

Well She did clean up and we all regained our senses or so we thought, the sex admittedly was great, seeing my wife taking it like that did excite me and her sister knew it. As the next few weeks past not much was mentioned about it. Then some time later both women missed their periods and reality set in for all of us.