Did you know that I have a secret kink that I can't openly talk about in real life as a straight male...
Would you like to tell me about the kink?
I'm afraid you might be freaked out by it.
It's normal to be embarrassed about your sexual desires, especially when they might be viewed as strange. It's okay to keep them to yourself if you're too embarrassed to tell others about them.
It's not something I think about all the time, just every once in a while. I like to think about being raped.
While that is embarrassing to admit, there are probably a lot of people who share it that just don't talk about it. Rape-play has been a kink for a very long time, and if you find people who would enjoy it as well then there's no harm in at least trying it. With that said, though, it is a very strange one that a lot of people wouldn't approve of and so it makes sense to keep it quiet.