FURVERT!

4:3 anthro anus arrow_pointing_to_anus backsack balls balls_blush bdsm blush body_blush body_writing bondage bound butt butt_focus canid canine cocoaroni colored degradation english_text feet free_use genitals glory_hole glory_wall hi_res insult male mammal marker pawpads penis presenting raised_tail restraints sketch solo stuck tail tail_fur text through_wall writing_on_butt