2boys, age_difference, bara, beard, black-framed_eyewear, black_pants, blush, book, brown_pants, bulge, castle, coat, coat_on_shoulders, couple, facial_hair, feet_out_of_frame, glasses, holding, holding_book, holding_hands, large_pectorals, looking_at_another, male_focus, mature_male, multiple_boys, muscular, muscular_male, orange_hair, pants, pectoral_cleavage, pectorals, plant, purple_shirt, rainbow, shirt, short_hair, thick_thighs, thighs, toned, toned_male, water, yaoi