Three female contestants from the Big Brother house will face eviction this week in an all-girl showdown.

Lisa, Nicola and Sara will be put before the public vote after being nominated by their housemates.

Australian Sara Folino received five nominations from her housemates, while Lisa and Nicole had four each.

Student Lisa, 19, who joined her boyfriend Rex on the show two weeks ago, reacted angrily to the news.

She said she had fallen victim to a Big Brother conspiracy.

She said: "I told you Rex, but you didn't believe me did you?

"It's just people that aren't in the group, who want people in their 'final five' that's all it is. It's pretty obvious.

The newcomer also came in for the strongest criticism from her housemates, being branded "selfish" and "negative" by fellow contestants.

"When you've been here and been through some of the things we've been through, it would be a better atmosphere without Nicole," sales rep Lisa Appleton confided.

"She is quite negative about her experience in the Big Brother house."

Meanwhile Darnell continued to show signs of jealousy at the entrance of his friend Rex's love-interest.

"She hasn't been through all the stuff we went through to get here," he complained. "This is the end and this should be the fun times. We all got the speech from Rex that he wants to be here in the final with his girlfriend."

Scot Mikey Hughes added: "At the deep root of Nicole's personality, I think she is quite selfish.

"I think she likes everyone running about after her."

Simmering tensions between Rachel and Lisa also came to a head with this week's round of nominations.

Lisa complained that "things don't ring right" with the trainee teacher who escaped eviction last week.

"I feel she stirs things up within the house," she said. "Rachel has been really awkward with me, she has been unusual.

"Maybe it's we just clash. Things doesn't ring right with Rachel, Big Brother, she avoids eye contact with me and she'll look away really quick."

But the 24-year-old hit back, saying: "I don't like living with her at all. I feel very awkward around her, I feel uneasy and I don't trust her at all."

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