A post-eviction party was on offer for those in the main house if they succeeded, while housemates in the White Room would win a cream tea.
The 'Time Pies' challenge saw housemates trying to accurately guess the passing of a minute, by splatting themselves in the face with a pie once they thought 60 seconds had passed.
If three or more housemates creamed themselves within the 55-65 second window period, they would all pass.
Copyright: Channel 5The results were as follows:
Adam pied himself at 38 seconds. FAIL
Ashleigh pied herself at 1 minute 5 seconds. PASS
Becky pied herself at 1 minute and 9 seconds. FAIL
Deana pied herself at 1 minute and 1 second. PASS
Luke A pied himself at 1 minute and 11 seconds. FAIL
Sara pied herself at 1 minute and 11 seconds. FAIL
Scott pied himself at 1 minute and 11 seconds. FAIL
The housemates therefore failed their challenge, and will receive no rewards this evening.
Becky Hannon and Ashleigh Hughes are the bookmakers' favourites to be evicted tonight.
Big Brother airs tonight at 9pm on Channel 5.