rule 34 android anus armpits ass ball joints big ass biomechanical black and white black eyes black hair black lipstick brown skin cheeks closed mouth dark hair dark skin egirl fetish fixelboy goth gyaru half body latex mecha mecha girl monochrome multiple positions nipple piercing nipples original original artwork original character pov pupils robot robot arm robot girl sketch small breasts thick thighs vagina view between legs viewed from below wip work in progress 5264128