You need to verify. The only reason you wouldn't is because you're afraid of what you might find and that it would shatter the image of your unicorn in your mind.
Stimulate the clit while you're fucking her and if she's relaxed enough she'll have her first semi vaginal orgasm. Do this a few times over the course of a few sessions and gradually ween her off the clit finger stimulation. Eventually she'll orgasm from vaginal sex as long as you're not autistic.