I don't have a substantive answer for you, but historical views on homosexuality are a pretty well-trod topic in the FAQ
Specific threads that might be of interest:
And of course a key question, When did the Western societies start to perceive homosexuality as a characteristic, not as an act?
A bit tangential to your question, but this is my favorite post on the question of Roman sexuality. Hopefully it helps provide you an answer or starting point. http://www.reddit.com/r/AskHistorians/comments/u66i8/i_have_a_possibly_prurient_and_somewhat_unusual/c4sqekz