When you are hurtling through adolescence, overcome with warring emotions and desperately trying to learn a whole new set of rules for status and interaction, everything you thought you knew seems suspect and even your own body is completely unfamiliar and terrifyingly out of control. It sometimes seems that the best anchor to keep you from levitating off the ground over the intense humiliation and the overwhelming injustice of it all is to adopt an air of ferocious perpetual exasperation and disdain. But what keeps you going are those few moments when a tantalizing glimpse of the possibility of pure pleasure provokes the ultimate accolade: "Sweet!"…