Celebrity Juice: Holly Willoughby grabs her cleavage as she shimmies in front ...

She's never shied away from an x-rated party game on Celebrity Juice. 

And Holly Willoughby will put on a very cheeky display when she has to recreate a flirty fish spa in the House of Jeff Brazier for Thursday's upcoming episode.

The television presenter, 38, entertains Mark Wright and Keith Lemon by grabbing her cleavage while shimmying as she tries to act out flirty behaviour. 

Naughty: Holly Willoughby will put on a very cheeky display when she has to recreate a flirty fish spa in the House of Jeff Brazier for Thursday's upcoming episode of Celebrity Juice

Naughty: Holly Willoughby will put on a very cheeky display when she has to recreate a flirty fish spa in the House of Jeff Brazier for Thursday's upcoming episode of Celebrity Juice

After doing an impression of a fish by wiggling her tongue around and making water noises, Holly holds her hands to her chest and winks at the boys. 

Commenting on her sexy dance moves, Keith jokes: 'If you're a teenage boy at home and your parents have gone out, get your tissues. This is my gift to you', while Mark urges her to keep on dancing. 

He says: 'Don't answer keep her doing that. I like this next bit coming up.'

Seductive: The television presenter, 38, entertains Mark Wright and Keith Lemon by grabbing her cleavage while shimmying as she tries to act out flirty behaviour

Seductive: The television presenter, 38, entertains Mark Wright and Keith Lemon by grabbing her cleavage while shimmying as she tries to act out flirty behaviour

Underwater: After doing an impression of a fish by wiggling her tongue around and making water noises, Holly holds her hands to her chest and winks at the boys

Underwater: After doing an impression of a fish by wiggling her tongue around and making water noises, Holly holds her hands to her chest and winks at the boys

Crude: Commenting on her sexy dance moves, Keith jokes: 'If you're a teenage boy at home and your parents have gone out, get your tissues'

Crude: Commenting on her sexy dance moves, Keith jokes: 'If you're a teenage boy at home and your parents have gone out, get your tissues'

Fan: While Mark urges her to keep on dancing. He says: 'Don't answer keep her doing that. I like this next bit coming up'

Fan: While Mark urges her to keep on dancing. He says: 'Don't answer keep her doing that. I like this next bit coming up'

And Holly will take things to the next level later on in the show when she has to play mouth-to-mouth jelly relay with John Barrowman and Emily Atack.  

Holly attempts to pass the jelly to John, 52, by dropping it from a far height, but it misses, and spectacularly splatters on the floor.

Yet this doesn't stop John from finishing the game as he picks up the gelatin dessert once again, with host Keith Lemon demanding he give it back to Holly.

Hilarious: And Holly will take things to the next level later on in the show when she has to play mouth-to-mouth jelly relay with John Barrowman and Emily Atack

Hilarious: And Holly will take things to the next level later on in the show when she has to play mouth-to-mouth jelly relay with John Barrowman and Emily Atack

Holly and John then successfully exchange the jelly between each other's mouths and the Torchwood star runs to give it to Emily, 29. 

The

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