Allison was originally part of the War Room twist, in which her, Nate Sandri, and Scott Bosse were in a secret room of the house and had to be voted in order to be an official houseguest. Following the Day 15 eviction, it was revealed that Allison was voted into the house by Canada. She had a showmance with Andrew Gordon to stay safe while The First Five was in power. After Andrew was nominated by Canada, Allison campaigned to save him but was unsuccessful as he was evicted. Allison joined Jon Pardy, Neda Kalantar, Heather Decksheimer, and Arlie Shaban to create The Sloppy Seconds. Allison remained safe during the next few rounds, even finding a Secret Power of Veto. Allison began to worry about her position in The Sloppy Seconds, especially after Adel took away her position to play in the Power of Veto competition. Allison attempted to make a move against The Sloppy Seconds by using her secret power of veto to take Sabrina off the block and align herself with The Gremlins. Following Arlie's eviction, Neda won the "Pure 21" HOH competition. Immediately after, Neda was taken to the War Room. It was revealed to Neda that it would be an Instant Eviction, which meant that no Power of Veto would be used. Fearing why Allison used the veto to save Sabrina, and how she got the veto, and also stating that she doesn't trust Allison because she "sketches her out," Neda chose to nominate Allison and Sabrina, with Allison as her main target. Due to it being an Instant Eviction, no Power of Veto ceremony was conducted, and Allison was evicted unanimously on Day 51, being seen as a bigger threat than Sabrina. Allison played 7th, and became the second member of The Jury.
