Her affair with Chris

I didn't get all the details of the affair straight away, but over months and in some cases years. She would tell me as I licked her or sometimes if she was too sore while I wanked.
I asked her if she "loved" him and had thought of leaving me and she said, she only loved me and only liked him for the sex. She said that all the time they had fucked he never licked her once. He made it clear to her that he only wanted her for the sex, would never have sex with her when she was on her period, but would let her suck him off, or he would have anal with her.
He was very rough with her at times, but she says that she enjoyed that, he shared her with his friends, sometimes when she didn't want to, but didn't like to say "no" to him.
After I found out and encouraged her to keep meeting him, he would expect her to go to his whenever he called, sometimes we would be in bed and he would text her, she never refused him. I asked her loads of times if I could watch her having sex with him, but she refused and said he wasn't interested.
There where times when he didn't speak or call her for weeks, she would be really moody and wouldn't want sex with me, but as soon as he called, she would drop whatever she was doing and go to him.
He would fuck her anally on most visits and seemed to "get off" on knowing that I would lick her after he had fucked her.
One night my wife had dressed up as a Schoolgirl for me with very slutty make up, and even had a cane, she wanted me to use the cane on her and although I gave her a few swishes with it, I found it difficult to hurt her, she got annoyed and phoned Chris and asked him if she could go round, she didn't get changed, but just put a coat on.

She came home about 2 hours later, her makeup was a mess, she still had her uniform on, but when she lifted her short skirt she had no knickers. I couldn't believe the marks on her, some were nearly bleeding, when she bent over, I could see her ass was gaping open still so he must have fucked her anally, when I said how could he do that to you, she said because I wanted him to and you couldn't, she showed me her boobs and they had marks all over them.
I wanted to have sex with her, but she was too sore and tired.
At this point I had still not had anal with my wife, although we have since.

He would sometimes invite a friend or two and she would be expected to do as she was asked, sometimes she would be expected to have sex with one of his friends while Chris went out.She found this really exciting, she would especially like it when one of them would fuck her and as soon as they had cum another would take their place. The one thing she didn't like was when Chris had another women and Mandy was expected to have sex with one of his friends while Chris would have sex with the other woman, she never felt that she could refuse him.
He told her that he was going to take her to a swingers club and have her "gangbanged" but he never did.
She was never allowed to ... at his house, as soon as he was finished with her, she would come home or I would have to collect her, even at 5.30 in the morning.
He would tell her that I had to keep her clean shaved and had to start giving her ...'s after she had an "accident" after he came in her ass one time.
About a year after I found out about the affair he left the company she worked at, so she didn't see him anywhere near as much, but they would still text each other.