Cant really think of anything that bothers me... The only thing off the top of my head that I am pretty sure I would not like was if someone were to pee or poop on me.. Anything else I have tried and liked or havent tried but would be willing to, I think...
I have always been with older men, I dont think I could actually be with someone my own age, and forget someone younger. I have also found that of all my partners the one who was the oldest (20 year age diff.) was the best!