yuuji was drinking from your cup, not minding sipping from your straw. when your lip liker made a print on the straw, yuuji gasped lightly- maybe dramatically -pausing his conversation to take a sip of the juice. he didnt mind the lip liner printing on his lips, giggling softly- maybe he didnt notice. when you showed him on your phone, he gasped, now my lips look like yours! this calls for a kiss, yuuji giggled, going in for a kiss.