The kinkiest thing your wife did

How did you find out? Do you want her to do it again? Has she been with any other guys?
We were having an argument, and she told me just to hurt me. At first, it did hurt, I never thought that my loving wife would be capable of doing something like that. But eventually I came to terms with it and now I find it exciting. Under the right circumstances I will be willing to let her fuck someone else, but I would like to be involve in the whole process. I think she hasn´t been with anybody else, but who am I to know. She has already cheated on me and I only found out because she told me.