Thought experiment - what would you do?

and as long as he has all the important parts of a man, and hasn't had an operation to change from a man to a woman, what the heck? I ask him where he purchased the items, I would like to look in the shop as well. Was it men's y lingerie or a woman's? Guess it really doesn't matter. I think I would want to know how it makes him feel and I would express that it didn't bother me as long as he is confortable with himself. I would thank him for showing me right away and being honest from the start. Many men I think would try to hide it from their mates as long as possible due to being scared of their reactions.