Of course it is, you could be attracted to a female with a flat chest or double D's breasts are a more common feature in females but breasts don't make a woman a woman more than likely the whole reason your attracted to her is because you care for her. But yes it is normal and it's great you accept and find her attractive without the pushups
Well if you were only with her for her boobs, I think that would be a bigger problem. I'm sure you have plenty of reasons to be attracted to her, otherwise she wouldn't be your girlfriend. You can't say that the only reason you decided to date her was because of her boobs.
Same here! I don't know about weird or normal but it is definitely convenient. Win-win situation for both of you. It's kind of annoying how you can't properly compliment someone about it thought. "Your flat chest is so hot!" really sounds more like sarcasm than anything else. It takes forever to make girls finally understand I actually have a thing for flat chests.