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1:1 absurd_res anthro balls brown_balls brown_body brown_face brown_penis brown_skin clothing dark_balls dark_body dark_face dark_penis dark_skin echidna erection footwear fur genitals gloves handwear hi_res knuckles_the_echidna looking_at_viewer male mammal monotreme muscular muscular_male navel nipples oboii one_ball_out penis presenting presenting_balls presenting_penis red_body red_fur sega simple_background socks solo sonic_the_hedgehog_(series)underwear