2boys, ass, bara, belt, bertolt_hoover, black_belt, black_hair, black_pants, black_shirt, blonde_hair, gradient_background, hand_on_another's_ass, hug, male_focus, multiple_boys, muscular, muscular_male, olala45533, pants, reiner_braun, shingeki_no_kyojin, shirt, short_hair, simple_background, white_shirt, yaoi