床上的狼狈证明我们恩爱过
[chuáng shàng de láng bèi zhèng míng wŏ men ēn ài guò]
This is quite intimate and suggestive. It implies that past romantic or sexual encounters, even if messy or awkward at times, are proof of a deep and passionate relationship. Use of such a nickname might attract specific kinds of attention.