it completely depends on the quality and also amount of the aforementioned chocolate and sex. i wouldn't want to get stuck with a lifetime of sex with a weeny, rubbish partner, just as i wouldn't want to get stuck with crappy cheap chocolate forevermore. So, you have to choose which one is the better deal overall.
(by my standards, experience and level of addiction: sex. every time). there's lots of stuff with sugar in them, but nothing on earth to substitute earth shattering shags (: