Drinking acidifies the urine.. like stress does... causes nicotine to leave you more quickly. Once you're out of withdrawl, urine acidifying goes un-noticed. 90% of people who try nicotine replacements fail at quitting. Smoking only "feels good" because nicotine has a 30 minute half-life. So as a smoker, you're in beginning stages of withdrawl 90% of the time. Then something bad happens, the stress makes you lose nicotine and go into withdrawl. You smoke thinking it helped that or felt good. But it only helped or felt good because it got the withdrawl off of your back.
http://whyquit.com/
This is the only site out there with 100% truths about smoking.
Good luck.
You can fuck alot more, get harder, and cum alot harder without smoking