User blog comment:Oknight/Superboy and Superman/@comment-1747822-20110314055727

It was Superman's DNA they used, and technically, he is WAY younger than Superman, but the family relationship between them would be that Superboy is actually a son, not brother, since if so, then Jor-El would have one son by no one. So, in my opinion, Superman IS Superboy's father, because it's explainable in that the DNA source is technically the father.