Big Brother has insisted that Conor and Caroline didn't break nomination rules this week.
Many eagle eyed viewers were quick to point out Caroline sharing a card with Conor on Monday night, as the housemates nominated face to face.
Each of the housemates were given a pack of cards with the faces of the other housemates on. They then had to chose the two cards representing the people they wanted to nominate.
By footage showed Caroline showing one card to Conor, with many speculating that the pair were agreeing on who to nominate.
A spokesperson for Big Brother yesterday dismissed the complaints, saying that the nominations were "conducted fairly".
Luke A and Lauren both face the public vote tonight.
The spokesperson told BBSpy: “There has been speculation on several fan sites that during this week’s nominations Caroline attempted to influence Conor’s nominations.
“Big Brother has found no proof of this and is satisfied nominations were conducted fairly.”