First of all, my wife has only started having sex with other men just over a year ago now. There have been three so far - all younger black men - and one of these is a regular (once or twice every month).
I’ve noticed a few subtle changes in her. She has put on a bit of weight. She has always been curvy, but now is very curvy. This could be the result of being more comfortable in her body and confident in herself. It suits her. She looks younger and more glamorous. She does dress sexier, but only in certain circumstances such as when she goes out with one of her lovers. In everyday life, she dresses the same. But going out on a date with no underwear was something she would never do, but now does.
However, I feel the biggest change has been both our attitudes. I look at her differently now. I think about her differently. All of this is good and I really cannot think of any negative change.