Just weeks after Scott Disick completed a month-long treatment program for drug and alcohol abuse at the Cliffside Malibu rehab center, he was partying hard again, In Touch has exclusively learned.

“He was drinking until 4 a.m.,” an insider exclusively tells In Touch, who saw the self-described Lord holding court at a Hollywood Hills house party on Dec. 6. “He was a total mess. At one point, he even pushed his crotch into a girl’s face.”

And according to the insider, “He’s been hiding his drinking from Kourtney [Kardashian].”

RELATED: Scott Disick Promotes New Years Eve Club Appearance Following Rehab Stint

scott disick and kourtney kardashian and kids

Scott, Kourtney and their kids, Mason and Penelope.

While the 36-year-old and the rest of the Kardashian-Jenner clan were celebrating the birth of Kim Kardashian’s son, Saint West, on Dec. 5, Scott was heading for a fall.

He was spotted spending time with Kylie Jenner’s boyfriend, Tyga, 26, during a visit to a luxury car dealership and lunch at Beverly Hills eatery Il Pastaio.

scott disick and tyga

That night, say both the insider and a second source, they went out again. “Tyga has been wanting to blow off steam and keeps inviting Scott to hang out,” another insider tells the mag.

Scott is an addict, and despite all the progress he’s made with his sobriety, “He’s out of control again,” says the insider. “It’s like Scott’s given up.”

For more on this, and to find out who Kourtney was seen making out with, check out the latest issue of In Touch, on newsstands now!

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