Is it normal to really really like vaginas that are spread open?

I have a (what some would say a strange) fascination with how a pussy looks when spread wide open. I think it looks like a pink flower in bloom.
My ex girlfriend called it an obsession; and it's true that I get a little carried away at times when I'm really turned on and get a little pushy with wanting her to do it :(. I also like it best when done in a very specific way.

I mean I really love naked women a lot, but when I see a girl spread her pussy or ass, I just get really wild, like something animal in me wakes up and just want to masturbate to her doing it, go down on her and do her...for hours...it's a little weird I know.

Is this really strange? Any tips on control this?