你背上有老娘的抓痕你身上有老子的吻痕
[nĭ bèi shàng yŏu lăo niáng de zhuā hén nĭ shēn shàng yŏu lăo zi de wĕn hén]
It literally means, 'You've got the scratch marks from me(mom) on your back and kiss marks from me(dad) on your body'. The wordings are quite bold and flirtatious implying an intense physical intimacy. It could be playful but may seem offensive out of context.