US rap star Coolio used the N***** word yesterday morning during a conversation with Ben Adams but surprisingly the show bosses did not discipline him.

The show is no stranger to scandal and the last series of 2007 will always be remembered for the racial controversy between Jade Goody and Shilpa Shetty. Then the normal summer series in 2007 saw Emily Parr being evicted after she also used the N word in conversation with Charley Uchea.

Last night a TV insider told The Sun: “It’s as if Channel 4 and Endemol have learnt no lessons from all the previous incidents of racism and appalling behaviour on Big Brother.

“If he’s allowed to use that word without any sort of reprimand, what’s next? It’s absolutely disgusting. What if another housemate uses this kind of language.”

A Channel 4 source said that because none of the other housemates were offended by Coolio’s comments they had no plans to take action against him.

A spokeswoman confirmed yesterday: “At around 9.20am today, Coolio recounted a vivid dream he experienced overnight in which he had been involved in a fight.

“Coolio used the N-word in his descriptive retelling to Ben. Coolio described how his imaginary adversary called Coolio ‘Oh n****r’.

“This was again immediately flagged to senior production staff at Endemol and C4.

“After reviewing the footage, where Ben clearly took no offensive from the use of the word, no other housemates heard the word, the footage was not broadcast to cause offence to viewers and the context that Coolio used the word, no further action was taken.

“As always constant monitoring of any unacceptable language by any housemate is on going and Big Brother is always prepared to remind all housemates of these rules.”