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