Rule 34 Dev - anthro backsack balls big_butt brown_eyes butt fur genitals huge_butt looking_at_viewer looking_back male rear_view solo tail teal_body teal_fur dumbplatypus disney phineas_and_ferb perry_the_platypus mammal monotreme platypus digital_drawing_(artwork) digital_media_(artwork) hi_res shaded|21925580355