>>95107182Rose had to essentially re-program her gem to basically run a new operating system so that Steven could live.
The Gem proceeded to, using Greg's DNA as a template, create a human simulacrum capable of replicating human organic function. I.E. Steven gets bruises, tired, thirsty, sweaty, and have teeth he needs to brush that grew in eventually the way they do for any kid.
So, it's probably likely he has the ability to produce something akin to sperm with an equally manufactured number of chromosomes.
Steven's basically a modulated clone of his father so, It's more likely the children would be human.
OR HE'S GOT SANDLIKE CRYSTAL CUM AND EVERYTHING IS TERRIBLE FOREVER.