FURVERT!

2018 absurd_res animal_genitalia anus autofellatio balls black_border blush bodily_fluids border canid canine canine_genitalia canis collar comic comic_panel ear_piercing ear_ring erection feral genitals hi_res knot knot_in_sheath licking male mammal masturbation non-euclidean_masturbation noxik oral oral_masturbation oral_penetration pawpads penetration penile penile_masturbation penile_penetration penis penis_in_mouth penis_in_own_mouth penis_lick piercing portal portal_(series)red_eyes ring_piercing saliva saliva_on_penis saliva_string sergeantyakirr sex sheath solo spiked_collar spikes tail teeth thinking_with_portals tongue tongue_out unusual_anatomy unusual_tail valve valve_corporation wolf zetsin