Interesting verbiage. As a noun, lesbian means a woman whose primary sexual attraction is to other women... a gay woman, as it where.

As an adjective, lesbian is commonly used to describe or qualify something about the person and/or persons of similar sexual orientation, but not the person herself... as in, "She is in a lesbian relationship," or, "We're going to a lesbian bar." However, I've never heard of someone saying, "I"m lesbian." Gay, yes. Queer, yes.

Maybe this is too niggling a nitpick. If so, I apologize.