Perhaps Mark is becoming jealous of all the attention Emily Scott and Jessica-Jane Clement's buxom bodies are getting on I'm A Celebrity... Get Me Out of Here.
The TOWIE star, well known for flashing his perma-tanned six-pack at every available opportunity, decided to try out the girls' underwear in the jungle today.
He was joined by Dougie Poynter, who gave Jessica-Jane's leopard print bra a test run while Mark modelled her coconut bra.
Revealing: Emily Scott showed off another new swimsuit in the jungle today on I'm A Celebrity... Get Me Out of Here
Her one-piece had a plunging neckline cut to her midriff and was backless, leaving very little to the imagination as she plunged into the water.
Earlier, Emily and Mark had taken a swim together in the pool, where their flirtation kicked into high-gear.
Eye candy: The Australian former swimsuit model is putting her skills to good use in the jungle
Splashing about together, Mark regaled Emily with the tale of his first Bushtucker Trial, telling her how he ate turkey testicles.
'You’d have loved to have eaten balls,' Emily said, taking the conversation in a new direction.
Do you like eating balls?' Mark asked her. 'They’re my favourite thing. Breakfast lunch and dinner,' Emily retorted.
How do I look girls? Mark borrowed Jessica-Jane's coconut bra
Animal instinct: Dougie Poynter got in on the cross-dressing action, modelling her leopard-print bra
'You’re not bad eye candy yourself' replied Emily.
Later, the pair discussed their love lives. 'I only take girls out if I think they could be my girlfriend,' Mark told her. 'I have to talk to them for a couple of weeks.
Flirting pals: Later Emily and Mark took a dip in the pool together, where the conversation quickly turned suggestive
'Why would you go through the effort to date a girl for sex and get a bad name because she’ll hate you for it.
'I’m a cheeky chap but I don’t treat girls like that. I don’t want to do it to myself. I don’t like sleeping with random girls. I like to get to know them first.'
Playful: When Mark's banter got a little too steamy Emily cooled him down with a splash of water
Just floating around: Emily ensured her new love interest got an eyeful of her pin-up figure
Emily asked 'You have a poster of me on your wall? That’s cool. I like that' she said.
I'm A Celebrity... Get Me Out of Here continues Monday night at 9pm on ITV2.