Good for her, and we have no reason to disbelieve the youngest K-sister, because she says she works out with famous personal trainer Gunnar Peterson.
So....we've all noticed Khloe's bigger-than-usual, higher-than-usual + rounder-than-usual butt.
Is it real or fake?
Khloe claims it's the grueling sessions at the gym, including her 100 lb.squats, that are responsible for her fitter, firmer body.
Here's proof the 30-year-old K-sister trains hard, from her own Instagram page:

Can squats with free weights build a better, firmer behind?
YES....But, getting that perfect roundness + height, well, we're not so sure that weights + machines can make your butt look that amazing, so fast.
For a good lesson on squats for women, check this out on YouTube.