During TOWIE's last series, Gemma had sent a rather racy text to Jon over his Halloween costume, asking: "Will you f**k me with that mask on?"
She's made no secret of the fact she has the hots for the Essex boy, but it sounds like Gemma hasn't yet had her wicked way with Jon.
Speaking to new! magazine about his co-star, Jon decided to set the record straight, following his onscreen flirting with Gemma and said: "I love Gemma, but categorically, 100 percent, I've never had sex with her."
Gemma, meanwhile, has insisted she didn't mean anything by her flirty antics and was only having a bit of banter with Jon over text.
Appearing on TOWIE, Gemma's BFF Bobby Norris had left her totally red-faced by calling her out for her suggestive message in front of Jon!
A blushing Gemma covered her eyes with her hands before explaining: "Me and Jon are really good friends. What I actually said was… on Halloween, Jon was wearing a mask and it was basically banter. Me and Jon do text and have a little bit of a chat. So I turned around and said to him…"
She then insisted: "There was nothing in it! I did fancy Jon with the mask on and Bobby, I will kill you later! Oh my God, I'm going red!"
Bobby, meanwhile, had ruled out romance for Gemma and Jon from the get-go. He exclusively told us that he thinks things between the pair are just "flanter".
Bobs said: "I don't think anything is going to come of it. Gem thinks he is an attractive guy and stuff, but I think it is just more flanter. I can't see a relationship forming."
Flanter or not, we absolutely love Jon and Gemma together. It's TV gold, right?!
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