Hi, my wife and I are both 31 and have been married for 6 years. We had a great sex life until what started out as a dare became an obsession. My wife is very attractive with long black hair. Her father is Moroccan and her mother Swedish so she has her father’s dark skin and her mother’s blue eyes which is hot as hell. She is slim with nice firm bear shaped breasts which I used to love playing with. It was all great until the guy living behind us decided it was ok to made comments about my wife. He would say things like how he would love to have a titty fuck with her or would love those blue eyes to disappear over his cock. It was partly y fault because he would look over the fence at start a conversation and when he started to comment about my wife I would go along with it and encourage him I guess. I wasn’t concerned at all because he is in his late 60’s over weight and never bothers to make any effort where his appearance is concerned. At first my wife didn’t want me to talk to him because he was so appallingly crass but then she decided that it would be a good idea to wind him up and started undressing at night with the light on. She said that no one else could see in and it was ‘fun’ to watch him looking at what he couldn’t have. I would lay on the bed so he couldn’t see me and she would peer out of the window and when he appeared take her top off whispering that he was there. I admit that it gave me a hard on at the sight of her topless knowing another guy was watching. Then she started standing naked at the window and I noticed that she would press her breasts against the glass. Then that progressed to pressing her breasts against the glass and masturbating. I asked her what he was doing but she didn’t say anything so in the end I asked about three times before she told me that he was wanking himself off. I thought this was going a bit far especially when one evening she was groaning and her knees buckled and she let out a howl which told me she was having an orgasm. I asked her what the fuck made her cum and she told me that he had cum onto his bedroom window. I asked her to stop doing it and she said she would but she would insist on me fucking her doggy style and she would lift her head and peer out and I know for a fact he was watching in the dark and I think she knew it as well. We had several long talks about the fact she was becoming obsessed with it all and after a few weeks of talking she admitted that her fantasy was to have this guy cum on her breasts. I was gutted and furious but it was her fantasy and she promised it would just be the once so as stupid as it sounds I agreed. The day arrived when she would go over to his place with some excuse and see if he would try it on with her which she would allow and I would go out so I didn’t just sit in the house stressing. I did go out but 10 min later was back in the house sitting on the bed in the dark looking to see if I could see anything. I was watching the bedroom but saw movement in the living room. It seemed like ages but then I saw her standing with him in front of her, then her blouse and bra are on the floor and she kneels down in front of this obnoxious guy. He has what to be honest is an impressive cock in his hands and he is tossing himself off. My wife is touching herself, her head keeps rolling back and once or twice she helps him wank himself. Then she lets go and lifts her head just in time as he shoots his load onto her tits which she scoops up with her hand before using a towel. They are both laughing so I leave the house and come back about an hour later. She’s had a shower and tells me it was good fun but that was all and thanks me and we have the best shag ever. Then a few days later I agree that she can do it again and again I pretend to go out but sit and watch and it’s the same thing. Later she tells me it was fun and we fuck. Then she tells me she’s doing it again so I agree and again I pretend to go out but return. This time I stand in the dark out of sight and they have already started. My wife is naked on her knees and instead on this guy standing there with his trousers round his ankles he’s stark bollock naked standing in front of her. She is masturbating, squeezing her tits and fingering herself and he has his cock in his hand slapping it on her face whilst holding onto her hair. Then I watch as she takes it in her hand and feeds it into her mouth and the two of them go fucking nuts, he’s basically fucking my wife’s mouth and she’s trying to get as much in her mouth as possible taking it out it appears just to get a breath before shoving it back in. Her breasts are bouncing as her face is fucked. This goes on for a few minutes with him reaching down to squeeze her tits now and again before holding her head with both hands and continues fucking her face. This was bad enough but then he freezes and she grabs his arse and seems to be forcing more cock into her mouth she starts shaking, he has shot his load into her mouth and she’s loving it. This is way over the top and way more than I agreed to. I walk out and spend an hour trying to work out what to do without letting her know I have been watching. I decide to say nothing and go back, she’s showered and goes to kiss me but her breath smells of cum so there’s no fucking that night. I made her promise that it wouldn’t go further than his tossing himself off and she promises it won’t ‘except a titty fuck’ she says then tells me that she has promised him a titty fuck next time. I sort of agree but tell her this has to be the last, she looks like a child who has been told her birthday had been cancelled. Nothing happens for a week then I’m told she is going back over and I agree to go out. As usual I go back and wait in the bed room looking down to his living room. I see them sitting, him with a can of lager and my wife with a cup of coffee. I can’t quite see what’s going on until she stands up and throws cushions on the floor, he goes to his bedroom and pillows are added to the cushions. Then she’s standing there and his hand is on her arse with his tongue in her mouth. How the fuck can she want to kiss this fucking slob. Then there’s some frantic undressing and the usual wanking and cock cucking until my wife lays on her back with the pillows and cushions under her. I can see her tits heaving so its clear she’s out of breath and even from next door I can see her nipples are long and hard. She fingers herself for a while until this guy kneels over her tummy cock in hand. She squeezes her tits together and he has his titty fuck dispersed with a her holding one breast as he presses the end of his nob into her nipple. Then he’s down and having a good suck going from one breast to the other and my wife is throwing her head back and arching her back. Then my life is shattered. I was about to go over and knock on the door to end this when I watch my wife put her hands on his shoulders and push him down until his head is between her legs and she thrashing around clearly enjoying this little bit of ‘extra fun’ but she grabs his hair and pulls him back up. He takes his cock in his hand and feeds it between her legs and inside her. I have to sit and watch this fat old slob fuck my wife and I have to watch her enjoy it. Her hands clench into a fist and her les wrap around his fat arse as much as they could and he is pounding her, on the odd occasion he removes his fat body off hers I see her tits bouncing with each thrust. I go to get a glass of water and decode to go around and stop it but change my mind and go back to watch. This happens four of five times until over 30 minutes later they’re still fucking but as I make a final decision to go and stop it his thrusting stops and I actually hear a faint howl as my wife cums This bastard has cum in my wife. There was a little more thrusting before he gets off and I go and sit in the living room and wait for her to come home which she does about 20 min later. She’s shocked to see me and I tell her I saw it all. There was a huge argument and I move out but now we are back together, I have a fuck buddy who comes round a couple of times a week for a shag. My wife thankfully isn’t pregnant by him and has her own fuck buddy who comes round on the same evening. Her in one room and me and my friend in another. The moral of my story is don’t let swinging get out of hand and enjoy.