Dude!
Awesome question, but dominosarah is right with "NO!"
A lot of people smoke after sex for relaxation and many of them describe it as their "most enjoyable cigarette time", because after all that excitement & pleasure people want to calm down and feel better. Cigarettes contain chemicals that boost your dopamine level in your brain.
The chemical increase gives the smoker a feeling of well being and calmness, especially after sex.