They always have small breasts and generally an innocent look that simply can't be faked.
These girls are generally the sexy type with long, lanky bodies and nice, sometimes very big, breasts.
These girls fall into the cute category and do everything they can to play that up by dressing in cutesy tops, posing with stuffed bears, etc.
In the first the girl calls herself a 19 year old but looks as though she could be anywhere from 18-25.
In the second category the girl calls herself and 18 or 19 year old and generally looks every bit her age, if not younger.