The one on the left, who looks a bit like Kirsten Dunst
has a suspicious bulge in her pants.
( Mr.Ons knows you can hear him, Earthmen., Sat 3 Feb 2007, 1:05, archived)

The one on the right has spacked legs.

( Pedantichrist twitter.com/LordManley, Sat 3 Feb 2007, 1:09, archived)