Totally normal. It feels good. At her age, its not a sexual thing. It's no more "intimate" than me running my fingers through my hair when I'm tired. It's just a comfort thing. However, because its a private part of her body, I would encourage her to do it in her room when she's alone. DS1 used to touch himself a lot around that age. We just reminded him that was a private thing. Most of the time, he just quit. Once in a while, he'd retreat to his room. I haven't seen him do it in at least a year and don't think he's doing it anymore.
Hi! I'm Shannon
Wife to J
Mama to a couple of crazy boys - L (12/07)
and E (2/11)