碰了你的内衣我定给你嫁衣
[pèng le nĭ de nèi yī wŏ dìng jĭ nĭ jià yī]
'If I touched your underclothes, I'll give you a wedding dress,' suggesting a responsible attitude towards intimate behavior between people. There is a certain romantic promise and commitment contained here, where if things go too far, then responsibility follows.