Rule 34 Dev - 2boys anal anal_sex arms_up blush bound_wrists erection gay gintama hand_on_another's_head implied_anal katsura_kotarou llemonyyyy long_hair_male looking_at_another male male_only missionary_position monochrome motion_lines on_back penis profile restrained sweat takasugi_shinsuke toned toned_male yaoi|7558904512