Can't quite tell the from the OP if you mean kinks you are embarrassed to have or if you mean kinks about embarrassment. To the first, I have a couple kinks that I don't really discuss outside my partner that we have specific toys for. The second not so much, I guess I have a bit of an exhibitionism kink. Being stumbled on naked, but having the person be attracted not disturbed. Pretty basic I suppose, but not something I would ever intentionally pursue.