阿姨我喜欢你儿子叔叔我喜欢你女儿
[ā yí wŏ xĭ huān nĭ ér zi shū shū wŏ xĭ huān nĭ nǚ ér]
Means 'Aunt, I like your son; Uncle, I like your daughter'. It plays on traditional Chinese terms of respect for elders while humorously declaring mutual interest between children of the family friends.