臭小妞我爱你臭小子我想你
[chòu xiăo niū wŏ ài nĭ chòu xiăo zi wŏ xiăng nĭ]
Translates to 'Smelly Little Girl I Love You; Smelly Boy I Miss You'. Using affectionate terms (despite literal meaning), it playfully expresses fondness towards friends without gender stereotypes.