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4:3 accessory all_fours anthro ass_up bear beard belly big_butt biped bottomless bottomwear bottomwear_down brown_bear brown_body brown_eyes brown_fur butt chalkboard class classroom clothed clothing desk dirtymutt elderly exhibitionism eyewear facial_hair footwear fur furniture glasses grizzly_bear hair hi_res implied_audience information_board inside kneeling legwear lesson looking_at_viewer lying male mammal math mature_male morbidly_obese morbidly_obese_anthro morbidly_obese_male necktie obese obese_anthro obese_male on_desk on_front overweight overweight_anthro overweight_male pants pants_around_ankles pants_down paper partially_clothed school sex_education shirt side_view socks solo spread_legs spreading t-shirt table teacher teeth tongue topwear underwear underwear_down undressing ursine white_hair work wristband yellow_clothing yellow_shirt yellow_t-shirt yellow_topwear