Rule 34 Dev - 2018 bowser chain_chomp clothing collar erection galgard harness horn humanoid_penis koopa larger_male looking_at_viewer male male_only mario_(series) muscular muscular_male nintendo overweight penis pubes scalie shell size_difference solo spiked_armlet spiked_collar spikes star super_mario_bros._3 thong video_games|2958898560