[Coffee.]

I think sexuality is fluent. Your friend can identify as lesbian and like men, women, FtM, MtF, genderqueers, whatever, and she can still identify as a lesbian if she mainly likes women. It's her identity. I identify as heterosexual/heteroflexible. I'm mainly attracted to people who identify as men, and some who identify as women and genderqueer individuals, but mostly "masculine" people.

I agree with Harry in saying that FtM people are an "FtM" gender. They identify as male. Therefore, they're men. Therefore, you also like men. However, I believe you could still identify as a lesbian or maybe as "homoflexible" if you sometimes like men.