Kim and Khloe Kardashian have already flexed their acting muscles on TV -- and now, Kourtney is joining in on the action.
Kourtney made her acting debut yesterday on "One Life to Live," where she played a feisty lawyer named Kassandra Kavanaugh ("with 2 Ks") who got arrested with one of the show's studs after getting into a scuffle with a random bodybuilder at a gym.
How do you think she did? Check out the clip above and sound off below!