Back in the 90s, Malibu had a character called Prime that was the writers’ take on the idea of a boy transforming into a wish-fulfillment adult body. They focused mainly on the superhero form being a power fantasy, rather than the sexual side of it, but there were also some complications that came from grown-up Prime flirting with the 13-year-old girl he had a crush on, and when he’s caught with a backpack containing his own clothes (to put on after he changes back into a boy), both of which branded the hero as a perv.

My own take on the concept was a boy who transforms into Captain Miracle, a straight-laced God-powered superhero who retains his childlike intellect and moral purity, so sexuality doesn’t factor into the story much.