[Unfortunately for Ahad and the world... that is a very serious and legitimate question as far as Sieglinde is concerned, and she begins listing off a variety of factors she's obviously already thought quite a bit about.]

Naturally genetics and magical inclination are paramount... immortality and power are worth little in a sire unless they're inheritable... my line needs an infusion of powerful magic to continue as I would like...

[Doing this cross-armed is awkward, so she instead just clings to him with one arm and counts off on the other hand, feet dragging.]

Intellect is obviously valuable, a healthy constitution... and though not as important as the genetics a pleasant temperament is better than one with other inclinations...

[Something seems to occur to her, and she looks up, appraising.]

You and Loki are not quite the exclusive types, are you... ?