In a clip from Day 16 in the CBB house, 19-year-old Courtney is seen feeding Lauren Harries a late night snack of breakfast cereal - and it appears she may have had a drink or two.
Wandering around with a bowl of milk, Courtney stumbles into Dustin's bed. Lauren then warns: "If you get anything on Dustin's bed he's gonna, he's gonna...."
But rather than walking away, Courtney comes up with a naughty plan.
"Oh my God, what if I spilt it in his bed...shhh! Do you think I should?!" Lauren replies: "No! He'll kill you! Don't you dare! He's got to sleep in there all night!"
Courtney then asks Lauren to watch as she pours the leftover cereal milk onto his mattress. She tells Lauren: "We're gonna rub it in...he'll never know!"
Pretending nothing has happened, Courtney then staggers into the lounge before launching herself over the back of the sofa where Dustin is sat. Uh oh, someone's not going to be very happy with her!
Watch the full clip of Courtney being naughty below.
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