As this story is true, there won't be much in the way of fancy words and descriptions, just an account of what happened this weekend. My wife had been out with the girls, as she does once a month. She's 43 and really is in good shape, pretty with 36D tits and blonde hair. I enjoy the attention she gets when she's out with me, though she never dresses tarty, only ever very classy. I heard the taxi drop her off outside and she got herself a glass of water and came to bed. I asked her if she'd had a good time, but all she was interested in was getting my cock hard. Her kissing was much more passionate than usual and she was acting more like when we first got together. I went to go down on her, but she stopped me and pulled me up to kiss me again. I fingered her instead and noticed that she was very wet and slippery. She began to tell me that she'd been a naughty girl (she was pissed!) and I took that to be that she'd kissed someone on a dancefloor somewhere. I told her to tell me all about it. She said that a previous boyfriend, Steve, now oned part of one of the clubs in our town, and he had been there tonight. He had been paying my wife lots of attention saying teh usual shit about 'I should never have let you go' and all that. As my wife left his club to go to another, he asked her to come back later for a quiet drink with him. Forgetting all about me, she did go back to see him. She says they sat at the bar for a couple of drinks before he took her to one of the offices upstairs. In the office he started to kiss her and she responded, rubbing his cock through his trousers. She says that he took his cock out of his trousers and started wanking in front of her, telling her that she was the best fuck he'd ever had. With this, she says she knelt down and started to suck on him. He was reaching down and feeling her tits, before grabbing the back of her head and really fucking her mouth. Before he came, she says she got to her feet and he lay her on the desk in the office. There was no foreplay or anything, he just put his cock inside her and fucked her. She says he was quite rough with her tits and was not interested in what she wanted out of it. He turned her over a couple of times before taking his cock out and cumming over her face. He then made her suck him dry, which she says she enjoyed. They then sat in the office for a while catching up, and talking about getting together more regularly for similar. I did fuck my wife that night, because I'm a selfish bastard and (if I'm honest) it did turn me on a little bit when she was telling me about it. The next morning though, I was angry with lots of questions, and she was full of regret and remorse. It has caused awful rows over the last few days and I'm not sure I can forgive her. My wife, who I thought was faithful to me, is a slag and I wonder just how many other cocks she's had during these 'girls nights out' How can I trust her again, the fucking cum slut?