FURVERT!

anthro bodily_fluids clothing crouching echidna erection feet foot_fetish genital_fluids genitals grin hat hat_only headgear headgear_only headwear headwear_only hi_res humanoid_feet humanoid_genitalia humanoid_penis knuckles_the_echidna male mammal monotreme mostly_nude muscular muscular_male penis plantigrade precum presenting presenting_penis pubes red_body sega shadydaone smile solo sonic_the_hedgehog_(series)vein veiny_penis voyeur