Coming out to my wife that I enjoyed being a cuckold? That wasn't so hard. I had encouraged her to explore sex with bigger guys. when she actually did it, and felt guilty that she enjoyed it, admitting that it had turned me on immensely was actually a matter of comforting her. finding out that she could tease me about this and shift the focus from her own kinky actions, was a joy she never gets tired of.
Coming out to other people that I'm a cuckold? That has been much harder. when my wife's best friend found out, I wasn't prepared for her efforts to humiliate me. this had a much bigger impact on my sense of manhood then my wife's actual flings. it took quite a while to realize that the embarrassment and even humiliation of being cuckold could turn me on. by the time my sister found out, it was easier to explain but it still took her time to accept I wasn't being victimized.