Is it normal to notice my daughter sexually?

I am a happily married father of three. Like most men, I've always been very aware of the beautiful women around me. I've never had any intention of pursuing them, in fact, I seldom have a second thought about them after seeing them. It's just normal awareness.

Recently, my daughter has become an apparent woman. Unless you check her ID, you'd have a hard time placing her in college or high school. She's beautiful, and I'm not just biased. Every father wants to proudly say his daughter is beautiful so I konw it's normal to be aware of her beauty. However, sometimes I see her as beautiful young woman for a second, usually when I'm doing something else and see her in the corner of my eye or at the mall or something when I see her as part of the crowd or something like that. It's fleeting and I have no interest in her, but it's unnerving. This isn't the kind of thing men can talk about openly for fear of being judged by people's reactive imaginations instead of being able to have an actual discussion. So, I don't know if every father encounters this, a few of us do, or I'm a bit of a freak. It seems to be the instinctive animalistic human taking advantage of the distractions of the rational civilized human. As soon as the moment passes, I'm the proud father of a beautiful daughter, again.