FURVERT!

3:4 against_surface anal anal_penetration anthro canid canine canis casparr collar duo glowing glowing_eyes hyena imminent_knotting knot leash leash_pull leashed_collar looking_back looking_pleasured male male/male mammal muscular muscular_male mythological_canine mythological_creature mythology penetration shadowthedemon tongue tongue_out trixtheyeen werecanid werecanine werecreature werewolf wolf