Are Kourtney Kardashian and Scott Disick FINALLY back together?!

The party boy, 33, shared a cryptic Instagram photo over the weekend featuring his ex-girlfriend, 37, in a pool overlooking the waves in Cabo San Lucas, Mexico.

MORE: North and Saint West Take Dress Like 'Aladdin' Stars for Halloween — See the Pics

View this post on Instagram

Views

A post shared by Scott Disick (@letthelordbewithyou) on

In Touch first reported on Sunday that the former couple is on vacation together. They split last July after nine years of dating, when Scott was photographed getting cozy with his ex-girlfriend and celebrity stylist Chloe Bartoli in Monte Carlo. Shortly after the breakup, the famous father checked into rehab.

He was also recently rumored to move back into his ex's place.

Kourtney and Scott have three children togetherMason, 6, Penelope, 4, and Reign, 1 — and we bet they would be thrilled if their parents gave things another shot.

Relive their cutest moments in the gallery!