My sex life suddenly took a dip and sex wife my wife suddenly stopped, she started sleeping on her belly and wearing pj's to bed and making sure she wasn't naked infront of me as if she was hiding something from me.I took the move to walk in on her while she was in the shower to find she had nipples pierced and a large ring from her pussy. We stood and looked at each other and all I could say was I think we need to talk.We went to the bedroom where she confessed she had become a unicorn for a bisexual girl she worked with and her husband, she went on to tell me that I'd never really satisfied her and she regularly masturbated 2 to 3 times a day to satisfy herself.Asked her to explain her piercings and she reluctantly opened her legs to show me her labias where pierced too and locked to the ring from her clit hood to form a chastity lock.She went on to say that she had been having sex with her friend and intercourse with her husband for some time and it was there idea to lock so she wouldn't have sex with .It was my reaction that surprised me and found myself wanking off over the the thought of her with another couple on her own .she told me she had been to have to coil fitted so the guy could cum in and he was bigger than me by over 2 inch .Our married life as now improved without the stress of me trying to satisfy and when she goes to meet this couple I encourage her to dress like a tart slag whore .I'm 63 she's 53 .