Kourtney Kardashian and Scott Disick want to do things as a "family unit" for the sake of their children.

Kourtney Kardashian

Kourtney Kardashian

The 39-year-old reality star and Scott, 35 - who have kids Mason, eight, Penelope, six, and Reign, three, together - recently went to New York on a mini family vacation, and even though they're not a couple, they're keen to do things as a family for the benefit of their children.

A source told E! News: "When things are going well between Scott and Kourtney, the like to do things together as a family unit for the sake of the kids.

"The kids love when they all get to be together and Kourtney and Scott have been great at co-parenting lately. Everyone is really happy."

Despite their split in 2015, Kim Kardashian West - Kourtney's sister - has claimed Scott wants to have one more tot with his former flame.

Kim told family friend Larsa Pippen: "So Scott just texts me that he wants to have another baby with Kourtney. I think he just wants one more, and she wants one more."

Larsa agreed, adding: "She definitely wants more kids. If they both want to have more kids, why not have them together? Their kids are gorgeous."

At the time, Kourtney was in a relationship with Younes Bendjima - whom she split from over the summer - and although both parties were spoken for, Kim was convinced a fourth child could still be a possibility for the former couple.

She said: "I mean, it's like, Scott has a girlfriend, Kourtney has a boyfriend - we get it. They don't even have to have sex. It could be IVF.

"I have to tell the rest of the family to be like, 'Guys, should we encourage this?' How cute will that be? They have to have another baby!"