Kourtney Kardashian and Scott Disick
05/30/2011 AT 10:00 AM EDT
celebrated his 28th birthday at Gallery Nightclub inside Planet Hollywood Resort & Casino – and he enjoyed champagne with longtime girlfriend Kourtney Kardashian
and some close friends. The couple looked excited and laughed when Disick's birthday cake presentation began. (A troupe of feather-waving dancers brought up a lavish cake from Sugar Factory.) After dessert, the two wasted no time dancing and enjoying their evening with friends.