Scott Disick celebrated his 33rd birthday on Thursday, and not only was he joined by Kourtney Kardashian and the former couple's two oldest children for a fancy sushi dinner in Malibu, but Kim and Khloe Kardashian tagged along too -- plus Nori and grandma Kris Jenner! As usual, Kim stole the show in a sexy outfit, but it was Scott holding hands with Penelope that totally caught our attention. How cute!

Earlier in the day Kourtney posted a throwback photo of the couple (she's straddling him in a bikini, he's flipping off the cameras), and she wrote, "Happy birthday baby daddy!" so judging by that and the fact that the exes shared a car, we have to wonder what's going on between them. Amicable or on the road to reconciliation? Hmm...

Khloe posted a bday shout out to Scott as well and added, "Happy birthday lord!!! We've been through it all and I wouldn't have it any other way! Forever my brother and forever my bestie! Love you." Before dinner, Scott was spotted out with Kris Jenner, Kylie Jenner and French Montana, driving around their neighborhood while enjoying cigars. From family time to the totally L.A. way to celebrate a birthday, it sounds like the perfect day to us!