We call this the "big" body, but it's really more... "thick"? Bootylicious? Curvy? Something. Definitely larger than the others, though.
Here's a list of everyone who uses it:
Now we can link to this page every time we mention it.
teen boy | teen girl
superarticulated skinny | superarticulated thick
small male | medium male | beefy male | big male
skinny female | slender female | medium female | big female | giant female