sunglasses Amber Rose smoking hat car shots

Naughty naughty!

Amber Rose grabbed lunch at Urth Cafe in West Hollywood yesterday, and Wiz Khalifa's baby mama indulged her bad habit and smoked a cigarette after her meal!

We guess she picked up the cancer sticks again after giving birth to son Sebastian!

The model just got back from Coachella, and we bet she did a fair amount of lighting up during the music festival!