Why we have to study the exponential curve.

I'm not 100% sure the model is Thanchanok Jirekpreedamit aka About G

Sommarat Burwong aka Muay from Playboy ThailandHer page in Playboy Thailand: http://www.playboy.co.th/model/878

The photographer is Jassada Chumporn / Jassada Noom Chumporn