If your real-life body is male, you probably have an attraction to females and homophobia for males. That's good! We don't want that to change for your real-life personality. But what about you female personality?
Your female personality probably starts out with an attraction to females and homophobia for males. That's fine. If you want to just be a Lesbian, you will have lot's of company and lots of choices for sex partners.
The problem is, interacting with males is an almost irreplaceable part of the female experience. If you actually want to have a boyfriend (or boyfriends), then you have to figure out how to attract males. You have to interact with them and their egos. You have to sort out the jerks from the good guys. You have to decide how much sex to give him and when.
And on an on. It's a lot. But that is completely the point. A huge part of being female is dealing with males.
If you want to experience this, you have to actually want to attract a male. There are psychological ways of getting there. Trainings are available.
This also means at least not being aversive to sex with a male. Those trainings will be available soon. The goal here is to leave your main personality homophobic and give your female personality at least some desire to interact with males.
Again, the rule for Second Life is that a male avatar having sex with a female avatar is heterosexual sex.