黑暗之中吻了你的嘴
[hēi àn zhī zhōng wĕn le nĭ de zuĭ]
'黑暗之中吻了你的嘴' translates to 'I kissed your lips in the darkness.' This suggests a moment of hidden affection expressed under cover of darkness, perhaps secret or shy emotions that aren't exposed in light, implying romance that exists between people but not yet in the open.