There are quite a few people who can do them actually, I feel like there must have been one thrown already in comp, but definitely X-Games well see them.
lilly was a huge slut one day. she would cauck her ass up in the air and dance her lil paws begging me to fuck her. i was liek wtf lilly u whore im a human and we dont deal with that kinda pussy. - prosnurfer
Yeah it looks like when you take a big poo and you flex your butt so it tightens the anus and it creates a crease in the poop. - mtbakerteacher