It’s impossible to imagine Mick Jagger ever being anyone’s ‘slave’. Not even in a kinky sex way. Nor is it a good metaphor for romantic relations, because, you know. But it is a good jam, and good jams don’t have to make sense. You don’t make sense of energy and chemistry, you just either feel those things or you don’t. The magic of The Rolling Stones has always been in their combined chemistry together. They somehow make great jams happen even when they don’t actually have any good ideas, or when they’re not speaking to one another. That’s why they can turn a handful of previously rejected outtakes and polish it into a classic album. It is utterly inexplicable. But thank God.