rule 34 2021 anthro anus artist name ass up blurred background bovid bovine breasts cattle digital media artwork female fur genitals hair hi res holstein friesian cattle hooves humanoid genitalia humanoid pussy jack o pose looking at viewer looking back looking back at viewer mammal multicolored body multicolored fur navel nude pink hair pose pussy raised tail slipperycupcake solo tail tuft tuft two tone body two tone fur unguligrade legs 5109032