Scott Disick Credit: David Becker/WireImage

Scott Disick is enjoying the best of both worlds — partying and staying sober! The Keeping Up With the Kardashians star, 32, headed to Mirage’s 1 Oak Nightclub in Las Vegas on Friday, January 15, where he relaxed in his VIP booth and watched his friend Post Malone perform.

Disick showed up to the nightclub shortly after 12:30 a.m. in a black shirt, a dark blue varsity jacket and jeans. Throughout the night, he sipped on water and refrained from chain-smoking, a source tells Us Weekly.

A group of women danced near Disick’s table, but he paid little attention to them. Instead, he spent most of the night with pal Mally Mall.

After Malone’s performance, the reality star thanked him and screamed, “Who’s getting f--ked up tonight? Let’s party, 1 Oak!” over the microphone. He left the nightclub shortly before 3 a.m.

Us Weekly exclusively confirmed in October that Disick entered rehab for drug and alcohol addiction. In July, his nine-year relationship with Kourtney Kardashian ended after he was spotted getting close with ex Chloe Bartoli in France. Disick and Kardashian, 36, have three children together — Mason, 5, Penelope, 3, and Reign, 1.

Earlier this week, he was spotted filming Keeping Up With the Kardashians with Kris Jenner.

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