I read it about 5 years ago, but I'm pretty sure it was written in the 80s/90s. was a faded paperback with a very 80s style cover.
The protagonist is a teen girl and her father had somehow altered her to be able to undergo sexual transmutation. My memory is that he has gone and she is looking for him, and lots of the travel happens in a deserts cape. She is unaware of her 'powers' until they start manifesting due to her 'sexual awakening' / finding a boy.
The protagonist is a teen girl and her father had somehow altered her to be able to undergo sexual transmutation. My memory is that he has gone and she is looking for him, and lots of the travel happens in a deserts cape. She is unaware of her 'powers' until they start manifesting due to her 'sexual awakening' / finding a boy.