嘴里说爱你心里想上你
[zuĭ lĭ shuō ài nĭ xīn lĭ xiăng shàng nĭ]
Saying Love With Words but Lust in Heart: The name points out a disparity between speech and intention. The person says 'I love you,' but the true intent is rooted in physical attraction, rather than sincere affection.