My favourite moment was the build-up to my wife going with someone else for the first time, just as much as her actually doing the deed. We'd discussed the possibility of her going out and getting laid for about 2 years, including some role play in the bedroom with a realistic looking dildo as her lover. Then, working in a 24 hour convenience store in a nearby town as assistant manageress, she attracted the attention of one of the regular customers. He was only 23 and was soon asking her out, not bothered that she was nearly 35 and married with 4 kids.
Having checked with me first that I was still okay with this, she agreed to go out for a dr1nk with him after work the day after her birthday. I took her out for dinner on her birthday and we barely talked about anything other than her date the following evening!
Long story short, he met her after work and took her to the nearby pub for several dr1nks. Then my wife readily agreed to go back to his place where they were soon kissing passionately. He quickly had my wife's dark green uniform polo shirt off, followed by her white bra for him to fondle and suck on her bare breasts. Next she removed her black work trousers and panties and was in his bed. I bet he couldn't believe his luck getting the shop's assistant manageress into bed so easily, but as she'd told him earlier that she'd told her husband that they were stock taking and didn't know what time she'd be home, he must have realised this was going to be his lucky night.
It was. With the stamina of youth - he was young enough to be my s0n - he was able to fuck my wife 3 times before he let her get dressed and go home. I picked her up from the station with her smiling contentedly. She'd said she had a thing about younger men, early to mid twenties, and now she'd had one and wasn't disappointed.
Peter C