You find your happiness in your wife's happiness, the thing is she is happiest when she bounces on someone else's dick. You know she is a slut, but you love your slut.
And all you wanted to do is sit on a chair and see your wife getting rough sex. It's lucky, she is such a strong lady, she likes the challenge of taking multiple guys at the same time.
Since the very beginning of your relationship, you have fantasised about your wife with a different man. When it became a reality, it was much hotter than you expected.
Your wife takes care of your likes and dislikes. So whenever she has sex with another man, she asks how you wanna see her, if you would like to see him go rough. Little does she know, you only like to see it rough.