I Seem To Remember A Story

... about a gender confused boy who when turning 18 finds a rather domineering girl friend who quickly convinces him he should try being a woman, which she feels he is better suited. Her father is a tattoo artist and her mother is an MD who starts him quickly towards his friend's and his? goal. Did I miss something or is the story just wallowing towards incompletion. I don't remember the name or author. I'd like to catch up. Any ideas out there?

Portia