The inimitable Em & Lo are back, with the new generation's guide to everything you wanted to know about dating but were afraid to ask. In THE BIG BANG, they mapped out the physical territory; here Em & Lo chart the rocky road of relationships from the pick-up to the break-up - and everything in between. Sex Etiquette deals with the first date, the first time and the delicate art of dumping, but also what to wear to an orgy, precedence for threesomes, and the politics of taking photos ...Tongue-in-cheek and sassy, this is the dating guide of your darkest fantasies.