22 years old, female, 5'1", 86 lbs... natural, or should I be worried?

My girlfriend is 22 years old, 5'0" or 5'1"... and 86 lbs (confirmed with multiple scales). She's a C-cup as well, so it's not like she's just skin and bones. That weight seems like it's well below what you'd normally expect. [more inside]
posted by Televangelist on Jun 13, 2009 - 30 answers