In my entire life I’ve had only two sexual partners, and here is what I’ve encountered so far:

-the smell can be atrocious because of the bad hygiene or problems with vagina’s ph levels -when partner barely moves or is not involved in the process at all is also repelling -once I’ve been to a situation where she scratched my back and hands, squeezed my arms to scratches and bruises and sometimes laughed about that — didn’t like that -couple of times I was asked to continue going and going on her, which resulted in her having vaginal tears — didn’t like that request -I also hate it when she is ashamed of her body and covers it with her hands or wears a tee, eventhough I’ve told her thousands of times that she is beautiful and there is nothing to be ashamed of -once I’ve been to a situation where my partner was squeamish for no reason(just in case I’d like to mention that i am conscious about my hygiene and everything was okay that day), like, why having sex in the first place if you are not feeling like getting intimate enough for doing that? -not to mention kinks and situations where you are not on the same page, but here communication is the key, i guess