Here's the entry from world of Thedas, page 72 (I have the book open in front of me.)
"What I find the most interesting is that, despite the lack of open discussion on matters of human sexuality, there is commonality to be found in the subject in all Adrastian lands. Typically, one's sexual habits are considered natural and separate from matters of procreation, and only among the nobility, where procreation involves issues of inheritance and the union of powerful families, is it considered of vital importance. Yet, even there, a noble who has done their duty to family might be allowed to pursue their own sexual interests without raising eyebrows.
The view on indulging lusts with a member of the same gender varies from land to land. In Orlais, it is considered a quirk of character and nothing more. In Ferelden, it is a matter of scandal if done indiscreetly but otherwise nothing noteworthy. In Tevinter, it is considered selfish and deviant behavior among nobles, but actively encouraged with favored slaves. Nowhere is it forbidden, and sex of any kind is only considered noteworthy of judgement when taken to awful excess or performed in the public eye."