Rule 34 Dev - anal anal_penetration anthro balls bdsm belt_restraints biped bodily_fluids bondage bound cum erection feet forced forced_orgasm fucking_machine genital_fluids genitals hindpaw knot lube lying machine male medical_restraints milking_machine muzzle_(object) muzzled on_back orgasm paws penetration penile penis penis_milking restraints simple_background solo spreading straitjacket submissive submissive_male nx-42 jacobgsd canid canine canis domestic_dog mammal absurd_res hi_res|3974123370