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anthro armband balls belly big_belly biped bowser bracelet collar digital_media_(artwork)evil_grin flaccid flat_colors foreskin genitals grin hi_res horn humanoid_genitalia humanoid_penis jewelry koopa male mario_bros muscular muscular_anthro muscular_male navel nintendo nipples non-mammal_balls nude overweight overweight_anthro overweight_male partially_retracted_foreskin penis pose scalie shell short_horn short_tail signature small_horn smile solo spiked_armband spiked_bracelet spiked_collar spiked_shell spikes spikes_(anatomy)spread_legs spreading tail thetauren