Celebrity Big Brother 2012: Kristina Shannon throws a potato peeler at twin Karissa

'Get your punk ass outta here!' Twins turn on each other as Kristina throws a potato peeler at Karissa (but it's just for a task)

They may relish a good bitching session together about their housemates, but Karissa and Kristina Shannon never turn on each other – until now.

The twins had a screaming match in the Celebrity Big Brother house last night, hurling abuse at each other before their histrionics descended into throwing weapons; namely a potato peeler.

However, while their housemates believed
their argument was the real deal, the Playboy siblings had in fact been
set a secret task in which they were asked to create a drama worthy of
headlines.

Secret mission: Big Brother told Karissa and Kristina they had to create drama to impress a journalist into giving them headlines

Secret mission: Karissa and Kristina had to create drama to impress a journalist into giving them headlines

Trickery: The twins fooled everyone into their role play - apart from Frankie Cocozza

Trickery: The twins fooled everyone into their role play – apart from Frankie Cocozza

As the girls left the diary room,
they embarked on their pretend bickering and stormed the kitchen before
lobbing eggs at each other; causing Denise Welch to panic over the
wasted food.

Credit
where it's due, the girls were very believable, with their faces
reddening in mock anger and refusing to give themselves away by letting
out a giggle.

Hatching their plan: Karissa and Kristina decided how to fool the other housemates in the diary room

Hatching their plan: Karissa and Kristina decided how to fool the other housemates in the diary room

Comforting: Romeo offered a shoulder to cry on as Kristina pretended to break down

Comforting: Romeo offered a shoulder to cry on as Kristina pretended to break down

And the Oscar goes to... Kristina managed to force out some fake tears

And the Oscar goes to… Kristina managed to force out some fake tears

The explosion ended with Kristina shouting: 'Get your f***ing punk ass outta here, you stupid b***h.'

Karissa then marched off to the bedroom, while her sister went into the garden.

While Frankie Cocozza cottoned on
that the arguing was fake, everyone else believed the scenario that had
just unfolded before them, with Natalie Cassidy saying: 'She was ready to throw a knife!'

Turning blue: Natalie Cassidy was forced to have a bath in blue dye

Turning blue: Natalie Cassidy was forced to have a bath in coloured dye

Waving goodbye to dignity: Natalie said she resembled a 'fat blueberry' after her challenge

Waving goodbye to dignity: Natalie said she resembled a 'fat blueberry' after her challenge

One for the family album: Natalie was unrecognisable, but successfully completed her task

One for the family album: Natalie was unrecognisable, but successfully completed her task

Denise added: 'Karissa's been to anger management in LA.'

The girls eventually 'made up', with
Karissa telling Georgia Salpa and Nicola McLean that the fight erupted
because of Kristina's insensitive jibes about her sister's boyfriend.

In other CBB news, over the next
two days the housemates will be set a series of random tasks that
they must complete in 60 seconds.

Who said romance is dead Kirk forces himself on Georgia, despite her pulling away a nanosecond later

Who said romance is dead Kirk forces himself on Georgia, despite her pulling away a nanosecond later

That's a squeeze! Gareth had to bundle himself into the outdoor toilet while dressed in a fat suit

That's a squeeze! Gareth had to bundle himself into the outdoor toilet while dressed in a fat suit

Their Minute To Win It challenge
kicked off with Kirk Norcross and Frankie Cocozza having to climb into a
wheelie bin, after the cryptic message was written on the mirror
instructing them what to do.

Other
challenges involved Romeo crawling inside the treasure chest, Kirk and
Georgia being handcuffed to each other, and Natalie immersing herself
into a bath of blue dye.

As she successfully completed her task, she said: 'I look like a great big fat blueberry.'

Frankie also lost all of his street cred after being forced to dance to Justin Bieber track Baby.

Hold your nose! Frankie Cocozza and Kirk Norcross had to crawl into a wheelie bin together

Hold your nose! Frankie Cocozza and Kirk Norcross had to crawl into a wheelie bin together

Dancing monkey: Frankie was forced to dance to Justin Bieber on a podium for the Minute To Win It task

Dancing monkey: Frankie was forced to dance to Justin Bieber on a podium for the Minute To Win It task