You know which character I respect a hell of a lot? Captain Jack Harkness. He may be one of the most sexual characters in the history of ever but he backs the fuck off if anyone isn’t interested in his advances.
I hate seeing people reduce him to just “that funny guy who sleeps with everyone.” His character appears cocky and makes innuendo at every available opportunity, but his sexuality never actually defines him as a character (he just happens to be a 51st century pansexual/omnisexual, though he probably wouldn’t care for labels) and his story is tragic. as. fuck. (I would go so far as to say his character is one of the most tragic in Torchwood or Doctor Who, because the only thing more tragic than dying is not being able to die).
And you know what? He isn’t hornier than anyone else. He just came from a time/place where it’s acceptable to talk about sex and flirt with people. I don’t recall him treating men or women differently; people (regardless of gender) are respected when they deserve it, and are harmlessly flirted with equally to an extent (until someone gives a sign that they want to actually flirt). He likes contact and intimacy; sex is natural to him, just an enjoyable activity probably on the same level of pleasure as seeing a good movie or cuddling or having pizza, so he wouldn’t mind if someone didn’t want to have sex with him. He seems like the sort of person who gives the best hugs, with no wandering hands if you didn’t indicate that you wanted to be touched.