我爹他儿子最帅我娘她闺女最美
[wŏ diē tā ér zi zuì shuài wŏ niáng tā guī nǚ zuì mĕi]
Translates to 'My father thinks his son is the most handsome, and my mother thinks her daughter is the most beautiful.' It expresses pride in oneself as well as family love and the bias parents often show toward their children.