FURVERT!

all_fours anal anal_knotting anal_penetration anal_tugging animal_genitalia animal_penis anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro anus backsack ball_size_difference balls balls_on_penis barazoku big_penis bodily_fluids brown_body brown_fur butt canid canine canine_genitalia canine_penis canis cum cum_in_ass cum_inside digitigrade domestic_dog dominant duo equid equine equine_anus equine_genitalia equine_penis erection fur genital_fluids genitals german_shepherd haps herding_dog hi_res horse interspecies knot knotting larger_male larger_penetrated lucas_(lucastheshep)lying male male/male male_penetrated male_penetrating male_penetrating_male mammal mane motion_lines muscular muscular_male nipples nude orifice_tugging paco_(haps)pastoral_dog penetration penile penile_penetration penis penis_backwards penis_in_ass precum puffy_anus sex simple_background size_difference sketch smaller_male smaller_on_top sweat sweaty_butt tail tail_anus tail_motion tailwag tan_body tan_fur top_hole