I have no problem talking with anyone about sex if we're naked and fooling around with each other. However if I'm in a fully clothed situation with no chance of sex, I'm a bumbling idiot. An example of this happened a few days ago. I was in Cork for a bit of shopping and I wandered into Ann Summers. There were a few customers in the shop but it wasn't very busy and I felt comfortable browsing around until I heard a voice saying "Can I help you". I turned around to see a lady half my age with an exposed cleavage. Well. I just felt a stirring in my trousers and I just couldn't string 2 words together. Now if that lady was an escort I was visiting, I'd have no problem talking to her.
My wife caught me wearing ladies underwear and threatened to leave me.
So I packed up all her clothes
And left.