You are at a dinner with someone attractive. She suddenly kisses you. Or he leans unexpectedly across the table and caresses your thigh. Whatever. You know the kind of encounter and the range of possible responses. Consider the kiss. What does it mean, and where does it lead? Does kissing necessarily imply more, and if so how much? These and similar questions of amorous ethics and erotic disquisition are the central to our everyday intimate public lives and they are the lost object of the law of love, the "lex amatoria" collated and presented here.