Does your dick taste the blood or something?

Sorry to be crass, but honestly. No man I've been with has ever cared. I'm not asking them to eat me out (ew), and most of the time I'm not even the one initiating sex. The guy is the one that is like, "whatever." So why should I care? Throw a towel you don't care about underneath you and enjoy an orgasm. It really helps loosen up all of those painful cramping muscles and clean up is really no worse than if he merely came inside of you. It's not like it's hard to rub your cootch with a wet soapy rag if you really don't want to shower or something. And honestly if you're thinking about another bodily fluid during sex you really aren't enjoying it enough.

Edit: If it is a super heavy flow I would probably opt out because that would probably just be no fun, but if it's a normal flow, all of the above still applies.