FURVERT!

absurd_res anal anal_knotting anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro anus balls butt canid canine canis dalmatian darkened_anus darkened_balls darkened_genitalia darkened_penis darkened_perineum domestic_dog duo equid equine equine_anus foreskin friztwolf genitals hi_res horse humanoid_genitalia humanoid_penis knotting larger_male larger_penetrated larger_sub lying male male/male male_penetrated male_penetrating male_penetrating_male mammal on_side open_mouth penetration penile penile_penetration penis penis_in_ass perineum puffy_anus raised_leg sex simple_background size_difference skaro small_top_big_bottom smaller_male smile spread_butt spreading submissive tail tail_motion tailwag unretracted_foreskin