My wife in her late 20s was working as a receptionist in a physical therapy office for 4 years. Over that time she had got to know one of the therapists very well, best friends at work. My wife and I had gone on couple dates with him and his wife and we both went over to each other's house for cookouts and social gatherings. One night my wife came home looking kind of sad. She told me later that night she noticed John sad at the office only smiling when he was with a patient, she waited till the end of work to go talk to him. He said their anniversary was coming up and he was sad cause things are not like he thought they would be or imagine, after she pressured him a little more for details he said for some time now years they hadn't had sex cause of a medical conditions she has. He told wife he missed the feeling of being intimate with a woman and the feeling of sex, he said he has thought about it but not sure he could do it that is have sex with someone one else other than wife. After a week she came back home and said he seems a little bit better but he is still depressed she could tell she kind of said something that eluded to if she could she would help him out, the next day before i left to work i got my kiss by the door and then i told her It would be great if she help her friend out. With a smile on her face she closed the door and got ready for work. She went to work that day ask him if they could eat lunch together she wanted to ask him something, so during lunch she ask if he was still down he said yes but he would get over it, then the wife ask him if she could help. She said he stop eating look at her and was like what, wife said i can help and she would never tell, He said pretty face that he couldn't cause she was married even thought he thought she was beautiful but he couldn't. She told him again she would help out and the offer still stands if he changed his mind and add husband has all ready gave his blissing on it. He ask again what she told him we had talk about it and he said it was ok. well for the rest of the week nothing was spoken about it again till i got a text on the weekend from John he was beating around the bush a lot but finally ask if i did say it was ok if wife had sex with him. I told him yes it was ok and it would be discrete about it. I showed wife the text and we both got excited and had really hot fun that night, thinking when were and how it would all take place. On Monday she said he came in with a smile and seem happy but no mention about sex or anything it was getting late in the day when he came up to her and said he had thought about it and wanted to but was nervous about it she said its ok take your time. Mondays are busy days for with with all the paper work so one by one everyone left the office till John came up and said he was about to go and he would lock up since she would be the only one in office. He came up to her as she stood up from the desk to give her a hug but this time it was a closer longer hug wife said she pulled her head off his shoulders to look at him and he was still hugging her tight then she moved closer to his face and she gave him a kiss on the lips. Then he gave her a kiss staying longer till wife started to slip some tongue in his mouth and then they were full on kissing hard. she said his hands started to move all over her back touching her ass and rubbing it as they kiss. Then a hand went up her scrubs and he was touching her breast over her bra she reached down and felt his cock thru his scrubs she said it felt so hard good it made her kiss him even deeper.. After they broke away from kissing John to wife by the hand and led her to the therapy room over to a big therapy table used to stretch people out they started kissing again with him pulling up her top pulling it off her then taking off her bra after seeing her had nipples he went down on them sucking them and licking them then he started to tug off her bottoms and pulling down her panties. after they were most of the way down wife said he took her by the hips and got her up on the table then pulled them all the way off pushed her back and went right between her legs straight for her pussy, she said he was licking her deep and lapping up her wet pussy. he did that till wife had her first orgasm on the table with her legs over his shoulders, wife got up and started kissing him pulling of his pants and under ware till his hard cock pop out. Then she went down on her knees licking his tip and shaft and when she open up to put in her mouth she look up at him and took it all in. she said it wasn't long before he had his eyes closed moaning trying to control him self, when he grab her head with two hands and started moving her head back and forth till he was telling her he was about to cum she stayed on him sucking his cock till he blew his load in her mouth. Wife gave him a little break by sucking and licking his balls gently stroking his cock to keep it hard when his breathing calm back down she got up off her knees and bent over the table and told John to take her. Wife said he got behind her rubbed his head around her pussy playing with it till his tip was nice and wet then he slip it in, said said he let out another big moan and started to tell her how good her pussy felt around his cock. John started fucking her hard from behind with wife encouraging him to give it to her hard and deeper till he was full on pounding her. Wife said as he worked up to Cumming again she told him to fuck her and don't stop she wanted to feel his cum in her. John took her by the hips pounded as hard as he could till he was dumping his load deep into her pussy. he collapse on wife's back with his cock still in her and she said they stayed that way till he went soft. As they got dressed they kissed some more and eventually walk out together, when wife got home i was in the kitchen getting ready to start dinner when she came in and motion me to come in the other room so others couldn't see I said what is it she pulled down her scrubs till i could see her black panties it had big spot of cum in them. I said holly fuck you guys did it she smiled and said yes.. Bed time couldn't come quick enough to get all the details of what had happen