/jp/ - Otaku Culture

>>37838041
Presumably it's a pseudo butt that exists to look good (and store fat, much as one of the purposes of human butt cheeks).

Also, she does have an upright posture (when not crouching over like in the profile art), so could use strong gluteal (or in her case perhaps pseudo gluteal) muscles there like ours to help maintain it.

>>21313007
Man experiencing ahegao while a girtablilu or busty oomukade rides him cowgirl style.