Party goers start birthday task
Day 49, 16:56 BST
The fivesome, all dressed in their party outfits, screamed as they entered the secret party room to find cakes, balloons, a dance floor and a pool of coloured balls.
Big Brother announced to them that the party is "going to be really fun". Nicky complained that her dress was uncomfortable but Sam said: "I think I'm in heaven at the moment."
They all danced to a song on the stage and were then instructed to sit at the table and read out the instructions for the task.
Sam told them that they must stay at the table until Big Brother has had enough fun and there would be slop pudding for any housemates who were naughty.
She continued: "Housemates must have fun at all times unless instructed to do otherwise" and told them that if they leave the party at any time they will fail the task for the entire group.
After they had finished listening to the instructions they jumped up and started dancing to music again.