Stripping down to a racy red bra, the tanned blonde seemed to be having a lot of fun as she poured a bottle of water all over herself, while strutting around the garden.
The sudden turnaround for Isabelle came after fans had thought the contestant “boring” and housemates predicted she would be next to leave only 48 hours after joining them.
But as the house was divided for a task that involved having fun in the sun, the contestant seemed to take her role fully on-board and threw caution to the wind.
With a rapt audience, Isabelle showed no signs of embarrassment as she continued her routine, even when she fell head-first off a chair after sitting spread-eagled, and then proceeded to jump into the pool.
Shocked, the other housemates burst into hysterics, but Isabelle was unaware as she continued her dance with glee in a pair of high wedges.
After nearly breaking down in tears yesterday following the drama with other housemate Kieran Lee, the new girl in the house Isabelle may have just needed to let off some steam.
After Rebecca Jane expressed her concern, Kieran replied: “She’s my mate’s ex-girlfriend… it puts me in an awkward position.”
But he also revealed that there was more to the story when he spoke to Joe Quaranta and Lotan Carter in the garden later that day.
“My ex didn’t like her and thought something was going on, we were asleep and my phone went off and it was her ringing at 4 o’clock in the morning… it didn’t look the best,” he added.
Isabelle ended up confronting him later, but after she questioned the awkwardness between them, Kieran shot back: “You can explain the whole story if you want? Your ex is my mate for a start!”
Big Brother airs at 10pm on Channel 5.
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