milk carton challenge, drinking from a milk carton, rectangular paper carton, folded top, straw inserted, sipping, cheeks slightly puffed, focus on drinking action, straw in mouth, thin straw, white milk, holding milk carton near chest

（任意:胸の牛乳まみれ防止） spilled milk, milk spill, milk splashing, milk dripping, liquid spill, messy, stain, soaked clothes, milk on body, milk on clothes, liquid on chest