1boy, 1girl, arched_back, ass, bare_arms, bare_shoulders, blue_hair, blue_shirt, blue_shorts, blush, from_behind, hand_on_another's_ass, hand_on_another's_leg, huyumitsu, indoors, looking_at_viewer, looking_back, mole, mole_under_eye, open_mouth, original, purple_eyes, shirt, short_hair, shorts, sleeveless, sleeveless_shirt, smile, solo_focus, thighs