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abs anthro areola biceps big_bulge big_muscles big_pecs biped bottomwear bulge canid canine canis castbound clothed clothing detailed_bulge domestic_dog down_the_leg_bulge genital_outline hair hi_res huge_pecs male mammal muscular muscular_anthro muscular_male nipples pants pecs penis_outline russell_(castbound)solo sweatpants topless topless_anthro topless_male vein veiny_muscles