Lil Chris - real name Chris Drake - enjoyed a catch-up with Kirk after popping into Essex hotspot Sugar Hut, which is owned by Kirk's dad Mick.
We're sure the reality stars had plenty to talk about, and they were all smiles as they posed for a quick photo inside the club.
Captioning the snap on Twitter, Kirk, who completed his charity trek in Peru last month, said: "Great to see good old friend @ChrisDrake87."
Chris replied: "Good catching up buddy hope to see you soon."
Celebrity Big Brother star Kirk left TOWIE for the second time in March last year after rejoining the show in October 2012. He was an original cast member when TOWIE first started in 2010 but first departed after its third series in 2011.
Meanwhile, Chris announced his departure from the show earlier this year, explaining on Twitter that he will focus on his celebrity PA agency called All Star PA.
He wrote on Twitter at the time: "Thank you @itv2 for brilliant times/memories on TOWIE created over the last two years. I will now be concentrating on business @AllStarPA."
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