From time to time Loki felt the need to flee Asgard and its stifling attitude to spend time in a place more accepting of his interests and more open to change.
So at one point he found himself on the planet Krypton, in the female form of the scientist "Lara." He reveled in the chance to pursue knowledge with other like-minded individuals, one scientist in particular, and so eventually finding himself marrying into the amusingly appropriate house of "El"
The marriage was a happy one, and eventually led to "Lara" carrying a child. While Krypton's advances in sciences had led to the use of incubator chambers for reproduction, Loki insisted on a more traditional method. While the Asgardians referred to Loki as "Mother of Monsters" as a means of mockery, Loki himself viewed his status as "mother" to be one of his greatest accomplishments, and was loath to abandon any part of it.
In this case however his choice had unforeseen consequences. Had his magic and his health not been so compromised by what turned out to be a difficult pregnancy (it had been several centuries since his last child), Loki might have been able to prevent the eventual destruction of his temporary home. As it was, he was only able to ensure the safe departure of his newborn child and his own escape following the death of his husband. Loki was unwilling to risk what Odin might do to another child of his, so he could not take his son with him but only ensure that the infant found refuge on a planet who's yellow sun would unlock his greatest potential.
Like all of Loki's offspring, this child proved to be exceptional. But although he was the product of two great minds, his son instead seemed more inclined toward his Uncle Thor's path of playing the hero, solving problems most often by brute strength rather than guile (perhaps there was something in the air of Midgard?). But Loki would never disdain one of his children simply because they showed interests other than his own. And his son's actions had a useful benefit: as one of Earth's mightiest heroes (if not the mightiest!) there was no way that Odin could act against him despite his parentage.
So the way was clear for Loki to attempt to reestablish a relationship with his youngest child...
