Do you absolutely refuse to write about something? If so, what is it, and what about it makes you uncomfortable?
I absolutely refuse, and cannot write romances. To me... it is like a fallacy. Okay well any work of fiction illicit fantastical emotions (heroism, courage, sympathy etc), but I find these to be different, that they are more "innocent", while the romance is more primitive... Like honestly, if they wanted to live together, or just get right down to the point in the end, then why not do it? That's why movies/books like Twilight, displease me (beside the "vampirism" etc). Also the fact that it dehumanizes people... Saying they are an object, or that they NEED someone in their life, or they indeed are submissive...
(On a side note, that is the biggest difference with American and International humour, such as Australia's; while America might say, "So... You know... Do you want to take it up a notch." with a comical scene in following to getting to that point, the Australian comic, might have it so that the character would say "Let's have sex." With a scene of comical displeasure or other...) IE. I am merely pointing out the age of censorship.