Where does it stop? Because deep down, she doesn't want her husband anymore, but she will continue to convince him that her being taken away completely by someone else is a good thing for him. It's a deliberate process.
I’m a Dom and a bull. I have never forbidden a woman I’m seeing from being naked in front of her husband, in part because I like him seeing my cane/whip marks on her ass and thighs.
Of course I can’t fully know their dynamic when I’m not there, but when I’m in a couple’s home I call the man, who is almost always caged, “eunuch.“ As in “eunuch, put fresh sheets on the bed.”
It’s part of it. I think most relationships like this are lacking something in bed, usually and in my case it’s bc of lack of satisfaction due to small penis size. She will always want and need a penis capable of pleasing her whether she cucks you or not. Embrace it and be a part of her satisfaction