I see regularly girls assuming contortionist type positions to try express their ‘ booty gains ‘ for social media.
Most work their asses off in the gym to get their glutes but a prominent bum can also be mistaken for a case of lumbar lordosis.
As you can see in the picture, there is exaggerated curvature in the spine and rotation of the hips and the stomach pops forward.
Other than creating the optical illusion of great glutes, health implications such as lower back pain and poor hip mobility are contributing factors.
This can be corrected through exercise, myofascial release or stretch work usually, don’t fake your glutes when you could get real ones!