Co-star Holly Hagan posted the drunken kiss on Snapchat, and while it came as a surprise to fans, it was even more of a shock to Love Island star Max Morley, who had been dating Charlotte.
In a new video posted on his official YouTube account, Gaz recalls his kiss with former flame Charlotte as a "passionate" smooch with "tongues".
"We had a little night out," he said. "We got a little bit drunk, we had a little kiss. Me and Charlotte have been getting on really well at the minute."
In the video, which featured Charlotte as the interviewer, Gaz also revealed: "I could kill Holly. I'm in that house with cameras all the time, and the one time there's no cameras, Holly decides to film it!"
While Gaz declared that he and Charlotte are both "single", he admitted that they were going to see where things would take them.
"We just needed to spend some time together with no cameras, no pressure, no one around us. It felt like a first date but it wasn't."
Charlotte, who was laying in bed, was also keen to know if she was a good kisser...
"The kiss was alright," Gaz said. "There was a lot of tongue in there, a bit wet. Over the years, Charlotte has got a lot better with the kissing. Last night was quite a passionate one. That has been coming for quite a while!"
After Max insisted that things were now over between himself and Char, what's next for 'Chaz'?
"Me and Charlotte are in quite a good place," Gaz continued. "We're both single and guess what, we're going to have a little bit of fun! There's no harm in that."
Gaz said he and Charlotte will go on a few dates in the coming weeks, insisting it will be "casual".
Watch the video below:
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