Bum wrap

From the Beeb:

Researchers at a Scottish university are aiming to answer the question - does my bum look big in this?
Heriot-Watt University's School of Textiles and Design has launched what is believed to be the world's first study on how clothing affects the bum.
Four female models with various sized bottoms will wear different types of clothing as part of the research.
The study will examine how designs, colours, patterns and fabric types affect perception.

Includes gratuitous J-Lo photo.