Scott Disick had a visit from his three children on Sunday, but it wasn't his former partner of nine years, Kourtney Kardashian, who brought them.

Instead, it was her mother Kris who escorted the kids to the Cliffside Rehab Centre in Malibu to meet with their 32-year-old father.

The group were spotted on a balcony on Sunday, with Scott appearing happy to be reunited with Mason, 5, Penelope, 3 and Reign, 10 months. 

Kris was seen still wearing her striped PJs from daughter Kim's baby shower. She looked happy to bring her grandchildren to visit their father, flashing a big smile as they chatted with friends on the balcony and posed for photos.

An insider told Entertainment Tonight that "Scott seemed fine, but a bit serious."

On a recent clip of Keeping Up With The Kardashians, Scott is seen crying and apologising to the family. 

"It's been a really hard time, going from like, having all of you guys to having nobody," he told Kris, Kourtney, and Khloé.

I f**ked up. I made the worst decision I've ever made in my life,' he admitted.