Body's 20. I'm 31, Selene's 130, Chloe's... uh... mid teens. And Lu we call 20 'cause it's easiest, she's lived in the body since it was born. She seems to vary wildly between "older than dirt" and being more like some kind of animal cub. Don't think of it as age sliding, just her personality/mood changing. And I think it's normal for her kind to be pretty child-like no matter what age they are (That sounded pretty weird didn't it? Yeah...)