rule 34 4 toes abs anthro ball gag barefoot bodily fluids bondage bondage bound canid canine canis chained chains collar dildo dobby foster tony dobermann domestic electrostimulation feet foster tony gag handcuffs hands behind back lock male mammal muscular muscular male muzzle object nipple clamp nude pinscher plantigrade restrained restraints sex toy shackles soles solo submissive submissive male sweat tape toes 5391371