Great Scott, he can rap too? Scott Disick looked like he was having a blast celebrating his 30th birthday with friends and loved ones at Bellagio's Hyde Nightclub in Las Vegas on Sunday, May 27 -- so much so that he decided to snag the mike and take the stage for a few minutes. 

The reality show star and Kourtney Kardashian's longtime love was spotted rapping at the deejay booth at one point in the night, according to an eyewitness.

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"It was tough to understand what he was saying as he was rapping to music, but it looked like he was just enjoying the moment," the onlooker told Us Weekly. Disick's fun-loving antics had Kourtney, Rob and mom Kris Jenner -- who sat in a nearby table -- laughing and cheering him on.

According to the eyewitness, the club was so crowded that not many people seemed to notice the familiar face at the deejay table. Disick even serenaded Kourtney later on, and the pair smiled and giggled throughout the brief PDA.

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"She was sitting on his lap at one point during the evening and the two genuinely appeared to be in love and appreciative of one another," the source continued.

Disick and Kourtney, 34, have been dating since 2006 and have two young kids together -- Mason, 3, and Penelope, 9 months -- but neither is in a rush to walk down the aisle.

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"I think if it's not broke, don't fix it. You know what I mean?" Disick told Ryan Seacrest during an interview for a Kardashian family special. "I would say we're decently happy. I feel like I used to want to get married more than she did, and then, being that she was always so not interested, I've decided not to be."

This article originally appeared on Scott Disick Raps, Serenades Kourtney Kardashian During Birthday Celebration