Not ruining her day! Kourtney Kardashian looks bright and happy as she steps out with her kids after Scott Disick was spotted cavorting with a model in Miami

She has just returned from a family break in Costa Rica - which Scott Disick tagged along for - before he got snapped with a bevvy of beauties in Miami.

But Kourtney Kardashian was looking happy solo as she stepped out in Calabasas, California, with their children on Tuesday.

The 37-year-old reality television star appeared to brush off photos of Scott getting cosy with different women - despite rumours that the couple had reunited. 

Hot momma: Kourtney Kardashian was looking happy solo as she stepped out in Calabasas, California, with Penelope on her hip

The reality television star kept it casual in grey tracksuit bottoms, which rode high on her ankles revealing her bright white socks. 

Her toned midriff was on show in a long-sleeved cream cropped top. 

She added a pair of old school black Vans and covered her head with a baseball cap by her brother-in-law Kanye. 

All smiles: The 37-year-old reality television star appeared to brush off photos of Scott Disick getting cosy with different women - despite rumours that the couple had reunited

Her long brunette tresses were loose under her cap and she appeared to be sporting a tan from her Central America family vacay, as she went make-up free.  

The mum-of-three kept close to her eldest two - Mason, seven, and Penelope, four. 

She also has Reign, two, with Scott. 

Relaxed: The reality television star kept it casual in grey tracksuit bottoms

Stepping out: Her sweat pants rode high on her ankles revealing her bright white socks

Abs fab: Her toned midriff was on show in a long-sleeved cream cropped top

Retro: She added a pair of old school black Vans

Yeezus does it: The star covered her head with a baseball cap by her brother-in-law Kanye

Chill: She has just returned from a family break in Costa Rica - which Scott Disick tagged along for - before he got snapped with a bevvy of beauties in Miami

During their quick trip to Costa Rica Scott Instagrammed a snap of an oblivious Kourtney, 37, bending over in her swimsuit, exposing some side boob, as she tended to their son Reign. 

They had said to be reunited after becoming close again, although she was reportedly unimpressed that he had a wild time recently at the Sundance Film Festival. 

Then fresh off the back of a family trip to Costa Rica with Kourtney, Scott was spotted getting up close and personal with brunette beauty Jessica Harris - professionally known as J Lynne - in Miami on Monday. 

Looking good: Her long brunette tresses were loose under her cap and she appeared to be sporting a tan from her Central America family vacay, as she went make-up free

Busy: The mum-of-three kept close to her eldest two - Mason, seven, and Penelope, four who appeared to be attended to by a nanny

Fit: She showcased her slim waist and toned rear in the outfit

It appeared J Lynne couldn't get enough of the father-of-three, smiling and giggling throughout their exchange.

And it looked like Scott had eyes for his new companion as the self-proclaimed 'Lord Disick' appeared to kiss her neck as she held a cigarette.

The affectionate twosome also sipped on cocktails as they enjoyed their leisurely dip.

He was also seen cuddled up to another pretty young lady.

Player: He was also seen cuddled up to another pretty young lady

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