Is that Sasuke? Smoking? From who and when did he pick up that habit?

most likely he picked it up from itachi

Itachi?!!! DId he really pick it up from you?!!! If he did I'll never forgive you!!! otherwise just disregard that last part

IIIIIITAAAAACHIIIIIII TIME TO DIE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

i think tat the person who made this comic was addicted and he was stoned when drawing this BREAK THE **** HABIT SAUSKE!!!! You're too good to me to smoke.

Actually, I can see Sasuke smoking in the future.

Itachi doesn't smoke!!! It'd put wrinkles on his lovely face, though he wears so much damn makeup I doubt anyone would notice. Sasuke has smoked for a long time.