I'm forced to observe, with all the discussion of Superman being/acting as Superboy's father, that he ISN'T Superboy's father in any possible sense. Superboy is a clone, which means he is quite specifically the twin BROTHER of Superman (a clone is nothing more or less than an identical twin / twins are naturally occuring clones of each other)-- although with quite a bit more of an age difference than most twins.

Superboy's biological father is Jor-El.

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