你是我爸爸的女婿我是你爸爸的媳妇
[nĭ shì wŏ bà bà de nǚ xù wŏ shì nĭ bà bà de xí fù]
'You are my father's son-in-law, I am your father's daughter-in-law.' It humorously describes a familial relationship, highlighting marital ties and generational connections through marriage.