Girl is born looking like a Boy. She tries to be a Boy. Fails, but can fake it well. She has to to try to have some kind of normal life. Later, she finds out her body isn't as male as everyone (including her) thought. She's in-between, so can live as the woman she always was, without feeling like some kind of sex pervert. Her partner takes in her stride the fact that she married another girl, the person matters, not the physical shape, and they all live happily ever after, giving thanks that due to an unusual biological situation, two gals could have children together. Rare, but it happens.
From the Denver Post:Five years ago, when Steve and Debbie Crecelius awaited results of his kidney stone ultrasound, they weren't expecting earth-shattering news. But what the technician told them rocked their world. "She said, 'You're female,' " said Steve, a prominent local photographer who has worked with clients ranging from Harrison Ford to the city of Glendale. The medical discovery that he is intersex — born with a mix of anatomical sex traits, so biological gender cannot be classified as either male or female — led to a flood of revelations that would refine and redefine their 25-year marriage. When they got home, Debbie forced a conversation that Steve feared would cost him his wife and family. "There's something I've always wanted to talk to you about," she said, explaining that she'd always known that he had female traits.....No change of external appearance, just the revelation that her body wasn't completely male. That was enough. We need to educate people, especially Trans people, to realise that Trans people aren't "sex perverts" as is the popular belief. That whether someone is classically Intersex, with a mixed reproductive anatomy, or classically Transsexual, with a mixed neurological anatomy, or even if they just have a cross-sexed gender identity due to other causes - not that any have been identified - they're who they feel they are. They don't have to pretend.