2boys, 4koma, abs, aged_down, bara, bathing, bathtub, blush, chinese_text, comic, embarrassed, greyscale, indoors, ken_masters, large_pectorals, looking_at_another, male_focus, monochrome, multiple_boys, muscular, muscular_male, nude, pectorals, ryu_(street_fighter), short_hair, speech_bubble, street_fighter, wet, wet_hair, yuiofire