Gina, Dexter Koh and Jemima Slade were put up for eviction after Sunday's latest nominations, which were the first to be given by the housemates themselves.
The voting lines then opened and the public have been voting until this evening, when lines froze.
Emma Willis spoke to the house this evening to reveal which of the trio had received the fewest votes and was therefore safe from eviction.
"That's crazy, am I dreaming?" remarked Gina as the result was announced.
Big Brother than invited Dexter and Jemima to make a plea to the public to stay in the house.
Dexter said: "They should vote to evict Jemima because everything I'd done on this show has been real, I haven't double crossed anyone. I'm under no illusion I'm a winner but I'm here for the experience."
Jemima followed, saying: "Save me because I still haven't shown what I'm about, I think Dexter should go because he creeps up behind people and chats amongst the groups. I've been me from Day 1, save me and evict Dexter!"
Dexter and Jemima continue to face the public vote, with lines reopening again in tonight's Bit On The Side.
It's Vote To Evict once again this year, and the one who gets the most votes will be kicked out in Friday night's live show.
Vote for which of the pair you want to leave in our poll below...
Big Brother airs nightly on Channel 5.