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after_orgasm_torture anthro bdsm biped bodily_fluids bone_gag bound canid canine canis cum cum_in_mouth cum_inside duo ejaculation erection fellatio forced gag genital_fluids genitals heart_symbol hi_res humanoid_genitalia humanoid_penis internal internal_oral machine male male/male mammal milking_machine monochrome oral overstimulation penile penis restrained reverse_forced_oral robot robot_anthro sex slim_anthro slim_male slim_sub submissive submissive_anthro submissive_male tail tail_motion tailwag vein veiny_penis wolf zoul_illustration