rule 34 2017 all fours animal genitalia anthro anus ass backsack balls biped black fur black nose black tail brown fur butt grab canine chastity cage collar digital media artwork disembodied hand duo eyazen fully sheathed fur green eyes hand on ass i psilone lock male mammal multicolored fur multicolored tail nude perineum pink anus raised tail rear view sheath signature snout solo focus two tone fur two tone tail white balls white fur white tail wolf 2460164