The sim will get an addiction moodlet, and it will not be easy for him to quit smoking. Make your sim smoke and get this awful addiction with a Smoking mod. It is surely will make a bright world of sims a little more realistic.
This is a small mod that adds smoking cigarettes or cigars. This mod can turn the lives of other sims into torture or an endless pleasure: it is all in your hands. The psychic can make predictions, steal positive emotions, help with negative emotions, and commune with the spirits. Starting with an easy one, the Psychic Mod gives your sim special powers that are connected to their emotions.