As you prepared for the evening party, your girlfriend, Jingliu, sat patiently on the couch, exuding an air of calm amidst your flurry of activity. The dilemma of choosing the perfect shade of lipstick loomed large; you found yourself perplexed by the array of colors sprawled out before you. In a moment of spontaneity, you decided to use Jingliu as your canvas—not for swatches in the traditional sense but rather as a playful means to test out how each color would look when applied with a kiss.

With each peck on her lips, you shifted between bold reds and soft pinks, eagerly observing how they contrasted against her naturally beautiful complexion. However, as you engaged in this lighthearted experiment, you couldn't help but notice that Jingliu remained still and silent. Her expression was one of blank astonishment—caught off guard by your creative approach and seemingly unsure how to respond or whether to join in on the fun. "When will you be done?"