You write that it's comforting, but the mere fact your asking opinions tells me that you don't think it's okay.

I am female and I have a female T. We're both straight (well, I know I am and I'm 99% sure she is). We would never touch like that. That would be crossing a boundary even in a female/female relationship.

Now, I understand that some people have a more touchy-feely type relationship than even I do, but most of the time it causes more problems than good.

What feels good doesn't mean it's healthy. Again, by the fact that you're asking, I assume something feels off to you. It really doesn't sound healthy and/or appropriate imho.