FURVERT!

3:2 animal_genitalia anthro aroused balls bdsm big_balls bird_dog blush blush_lines bodily_fluids bondage bound canid canine canine_genitalia canis domestic_dog genital_fluids genitals golden_retriever hanging_from_ceiling hi_res hunting_dog knot knotted_penis leaking_precum male mammal muscular paws penis precum restraints retriever rope rope_bondage rope_harness solo sweat tonkotsu_spicy_noodle vein