Well that's a change! Scott Disick stays home in LA with the kids while ex Kourtney Kardashian parties in Vegas

He lounged poolside with a bevy of beauties earlier this week in Cannes. 

But on Sunday it was Scott Disick's turn to watch his children while Kourtney Kardashian partied it up in Las Vegas.

The 32-year-old reality star grabbed dinner and a movie with two of his kids - Mason, six, and Penelope, three.

Doting dad: Scott Disick, 32, watched his two eldest children - Mason, six, and Penelope, three - while his ex Kourtney Kardashian partied in Las Vegas

The self-proclaimed 'Lord Disick' was the quintessential family man as he spent the day with his two eldest children.

He dressed casually in a grey hoodie and distressed denim jeans as he held his little girl's hand and walked alongside his son. 

His eyes were kept concealed beneath aviator sunglasses and he finished his ensemble with tan suede boots.

Family man: Scott doted on his little girl

Sunday funday! Disick held his daughter's hand as they enjoyed a fun-filled day with dinner and a movie

Little Penelope looked darling in a grey ruffled dress while big brother Mason wore a long-sleeved shirt and white shorts.

As the trio enjoyed a relaxing afternoon in their quiet suburb neighborhood of Calabasas, Kourtney, 37, was partying until all hours of the night.

She and her sister, Khloé, 31, shared several Snapchat videos during a girls' weekend as they hung with their gal pals, the Haqq twins. 

Kourtney showed off her svelte figure in a leather ensemble which consisted of a cleavage enhancing bralet and matching shorts at the Jewel nightclub opening at the Aria Resort & Casino.

Letting loose! Kourtney Kardashian, 37, partied up a storm in Las Vegas over the weekend with a group of her girlfriends

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Beauty in black! The mother-of-three looked sexy in a cleavage enhancing bralet and bondage-style leather choker

Late night to early morning! Kourtney partied all night until the early morning hours

She accessorized with a bondage-style leather choker and added some extra inches to her height with a pair of very sexy thigh-high boots.

The group of ladies captured videos throughout the night lasting until the early morning hours when Kourtney nearly took off her lace-up heels inside an elevator.

Scott and Kourtney have tried to remain amicable since their split last July for the sake of their three kids, which also includes their one-year-old son, Reign. 

'Vegas Baby': The reality star clearly had the night of her life as she shot videos inside several nightclubs

Racy romper: Kourtney donned several sexy ensembles including one with keyhole cutouts going down the front

Kourtney has been determined to change Scott - who is known for his hard partying ways - to 'get his life in the right direction for himself,' she stated during an episode of E!'s KUWTK last week.

'[Scott] needs to grow up,' she said to her momager Kris Jenner and three sisters - Kim and Khloe, and Kylie.   

But on Monday Scott enjoyed an afternoon as he soaked up the sun while lounging poolside in Cannes while Kourtney watched their kids in Los Angeles.

And the father-of-three had quite the eye-popping view as he was surrounded by a bevy of scantily clad bikini babes.

Family affair! Kourtney partied with her younger sister, Khloe, 31

Crowned: The reality star shared several Snapchat videos and documented her girls' weekend in Sin City

Disick relaxed on a chaise lounge at his luxury villa alongside several women who paraded around the star in their tiny two-pieces. 

And although Scott and Kourtney have clashed over his behavior in the past, the pair have frequently been spotted out lately appearing like friendly exes.

Earlier this month the brunette beauty opened up during a candid interview with Kathie Lee Gifford and Hoda Kotb on the Today show.

'We're not getting back together right now,' Kourtney said. 'But I don't know what the future holds in life, in God's plan.' 

'Barefoot Becky': The ladies partied with the Haqq twins who said nicknamed Khloe because she likes to take off her shoes by the end of a night out on the town