Kourtney Kardashian hasn't been spotted out and about since she split from baby daddy Scott Disick (though she did post some selfies over the weekend), but Kim and Khloe Kardashian were all smiles when they stepped out on Monday and headed to the studio to shoot scenes for Keeping Up With The Kardashians.

Kim showed off her pregnancy curves in a skintight black dress and heels (we're not totally loving the mock neck, but otherwise, A-plus for this one!) while Khloe showed some skin in a pencil skirt and a chambray top tied at her navel. No bra, no problem! And if her new beau James Harden got a peek at this outfit, we're guessing he loved it too!

Khloe has reportedly been romancing the NBA star over the last few weeks, and over the weekend they were inseparable! The lovebirds spent the holiday weekend in Las Vegas, and after hanging at the Encore Beach Club pool party on Saturday, they went to dinner and later headed to Chris Brown's party. Harden may be 25, but he seems like a way better guy than Khloe's last few loves! And the fact that she wants to keep her new man a secret makes us think this relationship's for real ...