[@Growl] Sweet! 

I've got a different idea that I might go with now (Unless I change my mind again) but them being related could be sweet! (If not actual blood relation than defiantly mentally or emotionally or whatever. Kinda like adopted siblings)

Also just an idea that I was gonna use with my Half-breed Kryptonian that maybe you'd like to use is due to the imperfect part of the Kyrptonian DNA, the cells can't hold solar energy as easy/for as long so as time went on in a fight, the half-kryptonian's powers would get weaker since the cells can't recharge fast enough.