Let my wife play with her ex colleague [cuckold] [share]

I always told wife her ex colleague was into her, he is a few years older and she was his boss. We went to pub a few times etc and I could just tell. After she changed jobs he kept texting and slowly got a little flirty. I told her I was right and she didn’t agree but also thought he would be fun.
She met him for drinks and after a few he told her he found her sexy and got touchy and then she came home and told me I was right. Fast forward to much later and he texts again one night after a few drinks and it turned to sexting which I encouraged. This happened a few times and was fun. Then after he had been at a party he text again and mentioned he would love to see her and she looked at me and I said sure if you like. She text back that he should come by and he got very nervous but finally surprised her by getting in an Uber and texting that this is dumb and scary but I’m on my way, she was not expecting it and freaked but also was very keen so she got changed and asked if he wants to come in when he gets to our place. He was very nervous about me and didn’t want to but was happy to join her in her car parked across the road.
She walked out and met him, they jumped in and played for ages and then she said bye and came inside and told me all about sucking him and him going down on her and then riding him until they both came. She rode me straight after that and showed me how she rode him and I couldn’t help fill her up. So naughty, so fun.