July 08, 2015 04:45 PM

Kourtney Kardashian has been focusing on her family in the wake of her split from partner of nine years, Scott Disick. And on her first major outings since the breakup, the 36-year-old mom of three looked amazing in one of the sexiest outfits we’ve seen her wear in a long time.


On Tuesday, Kourtney dined with sisters Kim and Khloé Kardashian at Casa Escobar in Westlake, California. The trio stepped out wearing matching white outfits while shooting for their reality show, Keeping Up with the Kardashians.

For her part, Kourtney wore a long-sleeve cropped top that showed off her abs, a coordinating skirt with a net overlay, Stuart Weitzman’s “Nudist” sandals and a brown fringe bag. Her hair was down and straight with a middle part.


RELATED PHOTOS: In Their Own Words: Kourtney Kardashian & Scott Disick’s Highs and Lows

After photos emerged of an apparently inebriated Disick, 32, cozying up to another girl over 4th of July weekend in Monte Carlo, sources say Kourtney reached her limit and the couple split.

Kourtney remained active on social media, posting a photo on Instagram of her July 4th celebrations with her children. In the snap, the busy mom wears a white one-piece swimsuit, cutoffs and patriotic Flower Children Only cat ears.

RELATED VIDEO: Kardashian Sisters unite during Kourtney’s very public split from Scott Disick

The reality star’s sisters have rallied behind her during this difficult time. She broke her social media silence with a photo of a “sister workout sesh.”

In this week’s issue of PEOPLE, sources say that Disick’s trip was supposed to be a time out for the couple to work on things.

“Kourtney knew he was going on the trip. They both thought this could be a chance to breathe and work on things,” a source tells PEOPLE. “She didn’t mean that he should be rubbing lotion on another woman’s back.”

Now, as the parents of Mason, 5, Penelope, 2, and Reign, 6 months, start to navigate life apart, friends of the former couple are saddened by the way their relationship ended. “The bottom line is Scott threw this away,” says the source. “It’s too bad.”

What do you think of Kourtney’s latest looks? Do you think a hair change is next? Sound off below.

–Brittany Talarico

For more on Kourtney and Scott’s split, pick up this week’s issue of PEOPLE, on newsstands Friday

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