I'm working on Jubilation Lee, from Earth 92131, otherwise known as the 1992 animated series (I'm so excited for her use of words like 'psych', 'dweeb' and 'whatever').
Jubilation is fifteen and coming from the first season of the show... when she gets here, she will very likely cling to Storm and Rouge as she looks up to them a lot (and they've saved her butt half a million times). She's very close to both of them. She is still working on getting her powers to work when she wants them too.