They dated from 2006 to 2015. Three kids and a super successful reality show later, Kourtney Kardashian and Scott Disick remain friends.

But could the former couple be reuniting?

Kourtney, 41, and Scott, 37, appeared to close as they were pictured cruising around the gorgeous Lake Coeur d'Alene in Idaho.

The Poosh founder looked stunning in hot pink two piece as she enjoyed a day on a boat with Scott and their kids.

Kourtney was definitely the "cool mom" as threw on a throwback pair of orange-tinged sunglasses.

Her youngest son Reign, 5, rocked a blue lifejacket as he sweetly snuggled against his mom in a Instagram snap.

In another Instagram story, doting dad Scott drove the boat as Reign sat on his lap. With Scott's supervision, Reign even drove the boat.

"Baby driver,” Scott wrote over the photo.

The businessman mirrored Kourtney’s throwback look in a floral printed shirt, adding a luxe pair of Tom Ford sunglasses to his ensemble.

Kourtney shared an adorable photo of her new puppy, Ruby, who joined her and ex Scott Disick on a boat trip with their three children.

Kourtney and baby daddy Scott Disick have also been openly flirting on social media. According to sources the pair "have privately discussed getting back together, following his split from model Sofia Richie.

After Scott and Sofia broke up last month, the father of three has spent a lot of time with his baby mama.

Sources told In Touch Weekly now that Sofia is out of the picture, Scott and Kourtney are “getting closer by the day.”

Related: 10 Things Sofia Richie Has Been Up To Since Her Breakup With Scott Disick

The source explained: "The feelings between them are still very much there."

Even though the pair have formed a strong friendship for the sake of their children, insiders told In Touch they've had private discussions about getting back together.

The source added: "Neither of them wants to jump into a relationship right now, so they’re seeing how things go."

"No one would be surprised if they do get back together."

Kardashian was in an on-again, off-again romance with model Younes Bendjima. The pair met during Paris Fashion Week in October 2016.

Related: What Happened To Kourtney Kardashian’s On-Off Ex, Younes Bendjima?

Kourtney and Scott have have three children together: Mason, Penelope and Reign.

Mason is 10 years old. Penelope is 7 and Reign is 5.

Next: Scott Disick Looks Exactly Like His Son Mason In This Throwback Pic Of Him And Kourtney