>>107091897Originally, the excuse was that pre-Flashpoint Superman and Lois were kidnapped by Brainiac and placed in a planet outside the multiverse, so the planet could be immune to reboots to the multiverse, and in that planet pre-Flashpoint Superman and Lois lived inside a dom. Because Brainiac didn't wanted to have Superman raising a ruckus, he altered his DNA taking alway his powers. That's how Superman and Lois managed to make Jon, their son.
This was retconned later on to Superman and Lois simple... fucking and she getting pregnant. I don't know. Batman helped somehow? I mean, Superman and Wonder Woman were there to help with the delivery, so maybe Batman came up with some tech beforehand allowing Superman to impregnate Lois?