Kourtney Kardashian makes a busty display in amber tube top while taking son Mason to art lessons

Kourtney Kardashian just got back from a romantic vacation with her boyfriend in Mexico.

But on Wednesday, the star was mom-on-the-spot while escorting her eldest child Mason, eight, to art class in LA.

The social media sensation, 38, was a style stand-out in a ribbed crop top and high-waisted trousers while walking her little guy to his lesson.

Scroll down for video 

Mom duty! Kourtney Kardashian was mom-on-the-spot Wednesday while taking son Mason, eight, to art lessons in LA. The star had just gotten home from a vacation with beau Younes

Mom duty! Kourtney Kardashian was mom-on-the-spot Wednesday while taking son Mason, eight, to art lessons in LA. The star had just gotten home from a vacation with beau Younes

Kourt, who shared her three kids with ex Scott Disick, traded her usual athletic-wear for a rust-colored tube top which fantastically flaunted her toned arms and cleavage.

The starlet paired her chic top with plaid, bell-bottom trousers that rose to her hips and were cuffed at the hem.

Heeled boots added extra inches to the petite starlet's 5foot3 body.

The reality persona, who's been dating model Younes Bendjima for nearly a year, had her hair styled with a center part as she sported minimal makeup on her face.

Crop of the morning to you! The ex of Scott Disick traded her usual athletic-wear for a cinnamon colored tube top which fantastically flaunted her toned arms and cleavage
Crop of the morning to you! The ex of Scott Disick traded her usual athletic-wear for a cinnamon colored tube top which fantastically flaunted her toned arms and cleavage

Crop of the morning to you! The ex of Scott Disick traded her usual athletic-wear for a cinnamon colored tube top which fantastically flaunted her toned arms and cleavage

Style up a strapless top like Kourtney's from Aritzia

Here's an important question: who looks THIS good while running errands?

Kourtney Kardashian didn't "just" get dressed this morning, she planned an entire outfit and ended up with this inspired off-duty look.

From the complimentary earth tone plaid of her R13 pants to her burnt orange tube top; we're enamored with this on-trend look that also feels very seasonably appropriate for the winter.

Sadly her trousers are now sold out but this sienna hued knit top is still up for grabs (and on sale!) over at Aritzia. We recommend styling it with earth toned hues, perhaps a tweed midi skirt or nubby plaid pants a la Kourtney. Click right to shop her top or keep up with Kourt by perusing one of the bargain buys in the carousel below!

* PRICES MAY NOT BE AS ADVERTISED
Checking all the boxes! The starlet paired her chic top with plaid, bell-bottom trousers that rose to her hips and were cuffed at the hem

Checking all the boxes! The starlet paired her chic top with plaid, bell-bottom trousers that rose to her hips and were cuffed at the hem

Center of attention! The reality star's hair was styled with a center part and she sported minimal makeup on her face

Center of attention! The reality star's hair was styled with a center part and she sported minimal makeup on her face

She carried an itty-bitty A-frame purse at her side while holding son Mason's hand with the other.

The gradeschooler hugged his mom closely as he made his way to class in a faded blue velour Air Jordan sweatsuit.

While Kourt was on mom duty today, she spent the early part of the week spending quality time with boyfriend Younes, 24, in Mexico.

It was one of the duo's first vacations spent without the company of Kourtney's three little ones. 

Atta boy! She walked son Mason by the hand while carrying an itty-bitty A-frame purse in the other

Atta boy! She walked son Mason by the hand while carrying an itty-bitty A-frame purse in the other

In addition to Mason, the star has daughter Penelope, five, and Reign, three.

During last week's episode of KUWTK, Kourtney finally told ex Scott about her relationship with the much-younger Younes.

'Last night Scott called me at like 2am, he never calls me late at night ever. He was just ranting like ''What are we doing in life? What am I doing What are you doing?'' 

Ball is life: The gradeschooler hugged his mom closely as he made his way to class in a faded blue velour Air Jordan sweatsuit

Ball is life: The gradeschooler hugged his mom closely as he made his way to class in a faded blue velour Air Jordan sweatsuit

'By the end of the conversation I was just like ''I have a boyfriend and he is 24-years-old, it's not the craziest thing that has ever happened in the world.  

Scott and Kourtney began dating in 2007 and were together for a decade, never marrying.

Since the split, Disick started seeing 19-year-old Sofia Richie, who is the daughter of crooner Lionel and younger sister of fashionista Nicole.

Scott to trot! Since Scott split with Kourtney he's been seeing 19-year-old Sofia Richie (above) who is the daughter of crooner Lionel and younger sister of fashionista Nicole

Scott to trot! Since Scott split with Kourtney he's been seeing 19-year-old Sofia Richie (above) who is the daughter of crooner Lionel and younger sister of fashionista Nicole

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.