Occassionally you'll see an unaugmented asian girl with a fair sized bust who's skinny. There was this one Japnese girl that was in my 2D Design class and she was about 5'3" and wasn't skinny, skinny (she had moderate hips, and rear slightly larger than normal for most asian girls), but she had a small trim waist and a small D cup bust.
I've run into a few asian girls who are quite thin and have at least C cups—like the girl in my advanced drawing class. 24 years old, thin, about 5'5"-5'6", small hips, asian sloping rear, defined waist, C cup bust—when they leaned over to put some of their work away while I was talking to her her relatively loose V-neck shirt draped down enough for me to see her bra and the nice cleavage of her perky C cup bust. Passing conversation already found that they have a boyfriend, but she's still nice to talk to about various things.
My half asian friend (the one I meantiond that I had a hard time not looking at the design or text on her shirt) has small D cups on a 5'2" slightly chubby body. Geeze her breasts project in her shirt (and her nipples are VERY sensitive to the cold)!
Then there's my asian friend who asked out once (they said that they weren't ready for dating yet, and yes they haven't dated since the time I asked); 5'6", rounded (but not overly so) hips with a semi-small sloping rear, trim though semi-defined waist (only defined because of her hips), and a bust that's most certainly a D! One of her friends once set her up with one of my male friends for the homecomming formal in HS and she kept her cash for the evening wedged between in her cleavage! I try to make a point of hugging them goodbye or hello mainly as a friendly gesture (though it consequently has nice side effects as well).
However it's not to say that all of the asian girls around me are large busted (many in my classes are merely small to large B cups).
BTW, Jizz, if it sounds like I only like asian girls, it's not the case. I like asian girls a lot (since I'm asian and can get away with liking them without my family or friends saying that I have a thing for asian girls), but I like caucasian girls with dark hair or red hair, just not blonde—I do however make exceptions for notable cases.