I sometimes wonder about his libido or attraction to Females sometimes wondering if he is into males because the girls that are interested in him are enough to make a teenager fantasize for a long while.
The other girls in the series look like they are 16 or 17 years of age but Julie looks like she is 13 or 14 years but I have no issue with Julie but Tohru is exceptionally dense in Romantic matters, and can't seem to handle girls like Rito does.
I'm a tad late, but he ain't gay. If you're paying attention, he gets really really flustered when he's put in the harem antics. I doubt he would act like that if he was gay. Tora is another story, I'm not really sure about him.