They have been asked to perform love stories of each others' romances inside the house.
Aaron Allard-Morgan and Alex Rose will describe Louise Cliffe and Jay Mckray's relationship using the style of a musical.
Faye Palmer and Jay will portray Alex and Tom O'Connell's close friendship by writing a rap.
Meanwhile, Louise and Tom will tell Aaron and Faye's love affair in a soap opera scene.
Housemates will be rewarded with a love-themed party tonight if Big Brother is satisfied with their completion of the challenge.
Big Brother continues tonight at 10pm on Channel 5.
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