Is it normal if i stare at women with large breasts...

Who can't help looking at big breasts?

You're just the same as most of the men we see in the streets, subway, anywhere. So "normal"
--Men--

O.P. you are normal. Breasts are great! I agree with Dazzled though, be discreet about your Oogle-ing...

Unless those boobs belong to your partner, stop leering. It's annoying and creepy as hell.

Stop staring at me!
just kidding I like the attention, as long as you only jerk off later in private and not, you know, on my shopping cart.

Don't stare straight on at a women with large breasts, I know some of them wear low cut type cloths, they love their own breasts, but be discreet, look at them with the corner or your eye, then you can go home and do what you and I, well I used to do it 3 times a day, enjoy but don't stare.

Yes, you're normal. Although making it obvious is rude and disrespectful.