FURVERT!

ankle_cuffs anus ass_up backsack balls bdsm black_eyes black_nose bondage bondage_ring bone_gag bound brick brick_wall brown_body butt canid canine canis chain chained_to_floor chastity_cage chastity_device chastity_key collar cuff_(restraint)disembodied_hand domestic_dog duo english_text eyebrows feral gag gagged gaping gaping_anus genitals great_dane hanna-barbera hi_res inside internal_wall key keyholding light_bulb lock male mammal mastiff mazedmarten molosser motion_lines muzzle_(object)muzzled o-ring padlock penis perineum presenting presenting_anus presenting_hindquarters quadruped raised_tail restraints scooby-doo scooby-doo_(series)signature solo_focus sound_effects submissive submissive_male tail tail_anus text tied_to_pole wall_(structure)whimper white_chastity_cage