MARIO, Stephanie, Luke and Lisa all face eviction from the Big Brother house in the first vote this week after they failed their secret task.

MARIO, Stephanie, Luke and Lisa all face eviction from the Big Brother house in the first vote this week after they failed their secret task.

Mario and Stephanie were forced to pretend they were a couple in a bid to hide the house's only real relationship - couple Mario and Lisa.

But, after Mario and Stephanie married in a fake ceremony last night, Big Brother revealed there was a secret couple living in the house and invited housemates to guess who it was.

Following a group conversation, Mikey announced that the housemates thought Mario and Lisa were the real couple - putting the pair up for eviction, along with fake bride Stephanie and accomplice Luke.

Mario and Lisa were delighted that they no longer had to keep their romance secret but Luke was unhappy about being up for eviction and blamed Stephanie for their task failure.

Stephanie jumped into the swimming pool still wearing her wedding dress and told housemates she had found the task so hard she had repeatedly cried in the diary room.

But self-styled ladies' man Dale Howard was the first to console her, saying: β€œAt least you can be yourself now.”