001

Kara Zor-El and her older twin sister Bexley Zor-El are sent to Earth at the age of 13. They're sent to protect their baby cousin Kal-El but end up getting trapped in a void for twenty-four years, leaving their bodies still looking like their 13 year old selves. Ten years later, Kara and Bexley are now the twin super girl's of National City but no one knows their are really two of them.

(A/N)
I thought about this idea when I was fangirling over Katie McGrath who plays Lena Luthor in Supergirl.