In the gender war, humans have become so aggressively polarized between men and women that they don't even reproduce with sex anymore. Instead, they are cloned using artificial cells that emulate an ovum or a sperm with an X chromosome and grown in secret facilities over nine days on Venus, Mars and each side's bases on Earth.
I was different. Eighteen years ago, a defector from the men's side and a defector from the women's side- you could call them my parents- joined forces and combined his sperm and her ovum to produce a xygote before growing it inside an artificial womb (knowing it would be far too dangerous for her to rear it for nine months). Nine days later, I was born, a beautiful baby boy- or so they thought. While they were cradling me, I started acting oddly, and my penis and testicles moved up inside me as a vagina formed where they had been. Soon after, I started behaving like I had been again, and my vagina sealed up as testicles moved inside it and a penis grew above the sac. They were confused at first, but then they realized- I'm a shapeshifter.
As I grew older, I learned to control it. I travel between Earth colonies controlled by men, and ones controlled by women, staying with my separated parents. In private, I've often enjoyed transforming my male body into a female one, or my female body into a male one, to reassure myself that it does feel good and I like being that sex.
I've steadily learned to love both my male body and my female body- I'm kind of both a man and a woman at once, but also neither. For one thing, like my parents I hate this stupid war and wish we could find a way to end it. They're convinced somehow I'm the way, but I'm not really sure they're right. I want to try, but whether I'll get anywhere is another matter entirely.
Having said that, now I'm 18, and I'm going to stay with one of my parents with a plan...