1girl, armpits, arms_up, bed, black_shorts, black_tank_top, blue_eyes, breasts, brown_hair, cowboy_shot, long_hair, looking_at_viewer, lying, midriff_peek, on_back, on_bed, open_mouth, original, pillow, short_shorts, shorts, solo, sweat, tank_top, tarutaru_yamaoka, thighs