FURVERT!

5_fingers 5_toes abs ambiguous_species anthro ball_size_difference balls biceps big_balls big_muscles big_pecs big_penis biped bodily_fluids bottomless bottomless_anthro bottomless_male bound bound_pov canid canine canis chain chained claws clothed clothed_anthro clothed_male clothing coat cum cum_collecting cum_in_container digital_drawing_(artwork)digital_media_(artwork)domestic_dog duo erection excessive_cum excessive_genital_fluids eyebrows faceless_character faceless_male feet finger_claws fingers first_person_view flaccid floppy_ears folded_ears forced forearm_muscles fur genital_fluids genitals greyscale hair hi_res holding_syringe huge_balls huge_muscles huge_penis humanoid_genitalia humanoid_hands humanoid_penis hyper hyper_balls hyper_genitalia hyper_muscles hyper_penis lab_coat lab_coat_only larger_anthro larger_male looking_at_viewer lying male male/male male_anthro male_pov mammal monochrome muscle_size_difference muscular muscular_anthro muscular_arms muscular_male muscular_thighs navel nipples nude nude_anthro nude_male oldshep on_back pecs penile penis penis_milking penis_milking_machine penis_size_difference pressure_gauge pubes quads shaded short_hair size_difference smaller_anthro smaller_male smile smiling_at_viewer spot_color standing syringe tail toe_claws toes topwear vat vein veiny_muscles veiny_penis whisker_spots