Khloé Kardashian competed in a Color Run with her children this weekend.

The reality star, who rang in her 40th birthday last month, shared a bunch of photos of her fun day on Instagram for her more than 308 million followers.

In one photo, she posed with her daughter True, six, and son, Tatum, who will turn two later this month. All three wore colorful sunglasses in pink, purple and green.

The Good American founder and her little girl both had scarves tied around their heads to protect their hair from paint splatters on the race course.

The star also shared a photo of True trying to put a furry orange mustache on her brother.

In another photo, Tatum smiles wide with the mustache affixed to his forehead – upside down.

Khloé Kardashian competed in a Color Run with her children this weekend

The star shared a photo of True trying to put a furry orange mustache on her brother

The reality TV star also shared a snap of Tatum standing in a white t-shirt from the event with a bright green bandana around his neck and green sunglasses on his face.

The mother-of-two also posted an image at the finish line photo with True.

Both held up their medals and had big smiles on their paint-streaked faces.

The final photo was of a pair of sneakers and socks splattered with a rainbow of paint.

She also shared two short video clips. In one she ran with True while cheering ‘We’re doing it!’

In another clip, Khloé, wearing the furry orange mustache, showed off her finisher’s medal alongside her daughter.

Kardashian shares both her children with ex-boyfriend Tristan Thompson , 33.

The devoted mom revealed on the most recent episode of The Kardashians that she feels judged for spending lots of quality time with her kids.

The 40-year-old reality star shared a bunch of photos of her fun day on Instagram for her 308 million followers

The reality TV star also shared a snap of Tatum standing in a white t-shirt from the event with a bright green bandana around his neck and green sunglasses on his face

In another photo, Tatum smiles wide with mustache is affixed to his forehead – upside down

The mom of two shares True and Tatum, who turns two later this month with ex-boyfriend Tristan Thompson

The final photo was of a pair of sneakers and socks splattered with a rainbow of paint

‘For some reason, I keep getting dissected and scrutinized for being “too mommy,” she said during a confessional.

‘Like, ‘You spend too much time with your kids, you never want to be social, you don’t have any friends.’

‘But for me, I genuinely feel like I was made to be a mom and there’s no other place I would rather be than here with my kids,’ she explained.

‘But there’s gonna be a time that my kids are gonna want to choose their friends over me,’ she explained.

‘And right now, when I have the opportunity and the privilege of having dinner with my kids every night, I’m going to take advantage of that,’ she added.