I think this is a bit off. The best explanation for smoking the first time is social pressure. Maybe the first few times. After that, the best explanation for smoking is nicotine addiction. When you are used to the effect of nicotine, smoking a cigarette makes you feel good.

Also, not that I advise smoking cigarettes, but you can avoid burning your throat and lungs with good technique. Don't just suck on it like you are sucking juice through a straw; you will inhale too much smoke too quickly. Instead, only loosely touch your lips to the end of the cigarette, and inhale slowly. That will both let air mix with the cigarette smoke and give it some time to cool. If you do it right you should not burn your throat or lungs at all and the experience should be purely pleasurable.

(Damn... I'm going to talk myself back into smoking if I'm not careful.)