In Season 7 "Prophecy", a Klingon woman attempts to rape poor Mr Kim. The Doctor is most unimpressed.
In the end, Neelix saves the day.
Had this been a Klingon Male and a human Female, I wonder if there would have been the same reaction.
(Kim enters, holding a cloth to his cheek.)
EMH: What happened to you?
KIM: I cut myself shaving.
EMH: Is that a bite mark?
KIM: One of the Klingons attacked me.
EMH: Did you do something to provoke him?
KIM: Not him, her. And she wasn't provoked. She was aroused.
EMH: Ah. I'm not surprised. I've studied the section on Klingon mating rituals in their cultural database.
KIM: Then maybe you can tell me how to convince a female twice my size that I'm not interested.
EMH: Hmm. You probably can't.
KIM: Great.
EMH: As I understand it, you have two options. Kill her, or mate with her. Since the first option is clearly unacceptable.
(He hands Kim a PADD.)
KIM: What's this?
EMH: Authorisation for you to engage in intimate relations with a member of an alien species. Be sure to get the Captain's approval as well.
In the end, Neelix saves the day.
Had this been a Klingon Male and a human Female, I wonder if there would have been the same reaction.