Posted on Tue Nov 20, 2012 02:20 PM PDT
Kourtney Kardashian and little Mason shot scenes for their reality show in Miami on Monday at the Eden Roc Hotel, and later we spotted the two relaxing at the pool with daddy Scott Disick.
On Tuesday Kourt hit the gym with her sister, and she tweeted, "Good morning workout with @KimKardashian! She is my workout mentor. No one has drive like her."
And maybe Scott has something to do with this, but Kourt was in an uncharacteristically good mood:
She is our pick for the prettiest Kardashian ... sorry Kim!
SEE THE GALLERY Kourtney Kardashian Hangs On Tight To Little Mason
Kourtney And Khloe Kardashian Get Back To Reality In Miami - Nov 19, 2012
Kourtney Kardashian And Scott Disick Take Their Daughter To The Doctor - Nov 05, 2012
Kourtney Kardashian Pushes Little Miss Penelope Around Town - Oct 25, 2012
Kourtney Kardashian Keeps It Colorful In Miami - Oct 22, 2012
Kourtney Kardashian Rocks Sexy White Dress In Miami - Oct 17, 2012