Big Brother: Mole will dig up the dirt.

BIG BROTHER bosses are sending a spy into the house to spice up the reality TV show.

Producers have devised a plan where one of the 13 housemates will be a secret mole reporting back to show bosses.

And the male spy, who will enter the Big Brother house with the other contestants on Friday night, will be controlled by viewers.

He'll report to the diary room every day and viewers will be able to vote for him to carry out secret tasks.

They will have the chance to ask him to flirt with female housemates or start arguments in the house.

An insider said last night: 'Big Brother bosses are hoping it will heat things up and create some tension in the house.

'And they are hoping the viewers will enjoy being directly involved with what is going on in the house.'

Viewers will be told there is a spy in the Big Brother house within a few days of the show starting.

Big Brother bosses have also got plans to encourage the housemates to have sex. They'll get romantic, candle-lit meals and be fed strawberries, wine and oysters.

The insider said: 'The producers want full-blown sex in the house.

'So they are doing everything they can to get the housemates in a romantic mood.'

Big Brother bosses also have a surprise this time - hidden cameras to make it difficult for contestants to conceal anything from the public.

Big Brother executive producer Sharon Douglas last night refused to deny there would be a mole.

She said: 'There are lots and lots of rumours about what is going to happen. We will just have to wait to find out if they are true