The more the merrier!

Kris Jennerjoined her jet-setting daughterKourtney Kardashianon herextended Italian vacationon Saturday, just one day before Kourtney’s daughterPenelope Scotlandofficially turned 6.

Announcing her mother’s arrivalin Portofino, the 39-year-old mother of three shared a series of photos of the pair lounging together — and sharing a laugh — on a yacht.

“Had some work to do so flew in the momager,” Kardashian captioned the images, in which the pair sat together in front of a laptop while Jenner, 62, enjoyed a glass of wine.

The KarJenner matriarch had previouslyteased her arrivalon Friday, sharing a video on Instagram of her and boyfriendCorey Gamblehopping from one private jet to another.

And Kris was just in time to celebrate her granddaughter turning 6 on Sunday!

Although Penelope had previously commemorated her birthday alongside cousinNorth Westlast month with a jointunicorn-themed bash, her family still pulled out all the stops on her actual day.

Kourtney decorated an outside table with balloons, happy birthday streamers and plenty of festive hats in honor of her daughter’s big day.

In one photo of the celebration, Penelope is all smiles while wearing a pink hat with a gold tinsel trim.

Kourtney Kardashian/Instagram

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Penelope’s siblingsMason Dash Disick, 8 andReign Aston, 3, joined their mother and her boyfriend Younes Bendjimaon vacation two weeks ago — and during the celebration, Mason paid his mom a big compliment.

“‘Why do you have to be so fun?’ -mason,” Kourtney captioned a photo of herself at the bash.

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Of course, no birthday is complete without an extra special sweet treat!

RELATED VIDEO:Kourtney Kardashian‘Trusts’ Sofia Richie with Her andScott Disick’s Kids: Source

For Penelope’s big day, Kourtney served up a beautiful confection covered with orange slices, grapes, and her daughter’s name.

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And even though Penelope’s fatherScott Disickwasn’t on hand to wish his little girl a happy birthday in person, he shared asweet tributeto her on Instagram.

“My little peep,” he wrote alongside a picture of himself carrying his daughter in his arms.

“She isincredibly happywith Younes,” a source recently told PEOPLE. “They are getting serious. Younes is very close to her kids and loves spending time with them. The kids really like him.”

“Kourtney is having the best time in Europe,” the source added.

source: people.com