I don't know.. I guess it IS the same logic as a push up bra, in terms of being deceiving.... but i think this is a pretty lame product, and i wouldnt mind some more booty myself. But i will NOT be buying this product. I think its idiotic. i think anyone that walks enough gets enough exercise so their ass isnt sagging like a pair of boobs. they are two different body parts. Boobs are made of fat. The butt is a muscle.