FURVERT!

2015 ambiguous_gender animal_genitalia animal_penis anthro anus avian backsack balls bird blue_body blue_feathers brown_body brown_fur canid canine canine_genitalia canine_penis close-up duo erection feathers fur genitals hi_res knot kwik_(artist)legs_up lying male mammal nude on_back penetration penis raised_tail sex spread_legs spreading tail