When you are having modelling photo shoots done, most of the tricks are in how you pose and look at the camera rather than how you actually look in reality - to a certain degree of course.
 
Whilst you do need to have roughly the right shape the way that you pose does have a big impact.
 
Here is one trick many models use to accentuate their behind and improve the way their butt looks on camera.
 
The trick is simply to lean forwards slightly into the shot, which causes the natural curve at the bottom of the spine to show. This accentuates whilst also adding definition to the butt.
 
If you take a look at photographs you will see how many people use this trick to show the curve at the bottom of their spine of the body and also make their butt look good - a trick worth using in your model shoots!