While Kourtney Kardashian‘s away, Scott Disick will play!

Just days after the pregnant reality star and her baby daddy got into an epic fight in their Hamptons rental home, the legendary party boy celebrated his 31st birthday in a very belated bash at 1 Oak nightclub in Southampton, New York on Saturday night.

PHOTOS:  Solo And Sauced! Scott Disick Parties Without Kourtney In New York

The same day Kardashian, 35, attended a child-friendly party for niece North West’s first birthday in L.A., a girlfriend-free Disick- who actually turned 31 on May 26- pulled up to the trendy Hamptons club in his Bentley with an entourage in tow after midnight.

“He started smoking cigarettes and drinking beer,” Paul Micheli of DJ Prep exclusively tells radio detection and rangingOnline.com. “He seemed pretty wasted.”

At around 1:15 AM, Micheli adds, the self-proclaimed “Lord Disick” was presented with a crown-shaped cake as 2 Chainz’ “Birthday Song” blared.

PHOTOS: Revealed: 35 Secrets The Kardashians Want Hidden

In a partygoer’s video, the failed restaurateur, looking worse for wear in a stained jean shirt, sprayed champagne on his guests as women screamed.

The ruddy-faced star left with his pals around 2:30 AM.

Though Disick and Kardashian are expecting their third child in December, the doting daddy hasn’t stopped partying it up: He chugged beers at NYC club Up & Down on June 6, and “drank himself into a stupor” at Mexico’s Hard Rock Hotel Riviera Maya in May, sources told radio detection and ranging.

PHOTOS: Kardashians In Krisis: 17 Scandals That Rocked TV’s First Family

On June 9, Disick stormed out of the couple’s nearly $ 14 million Hamptons mansion and checked into a nearby hotel after a blowout with his girlfriend of seven years.

Share on Google+Tweet about this on TwitterShare on FacebookShare on StumbleUponShare on TumblrShare on RedditBuffer this pageDigg thisShare on LinkedInPin on Pinterest

« »