Where Has She Been Hiding THIS!?!

We were so blown away by Harlow's cuteness the other day, we didn't really take a moment to stop and appreciate the glory that is Nicole Richie's derriere!

The hot mama stepped out in a pair of opaque black leggings over the weekend, and she left little to the imagination as she strutted down the sidewalk. There is a universal fashion law that says even when wearing leggings, you're supposed to cover yourself the way you would with a pair of stockings, but we think Nicole and her caboose are allowed to bend over that rule a little bit!