The thing about Turians is they are the most loved species by far in the Mass Effect fan base, especially by females. Not sure why that is, but as noted via bioware forums Garrus is the top romance option for fem shep. Even one of the designers for Garrus and I quote " I think he is a favorite one when it comes to the a questionable fan art. The one you have to keep a filter on when your looking at."
Heh...