SARAH Harding showed off her wild side on tonight's Celebrity Big Brother as she drunkenly bit Amelia Lily on the leg.
The former Girls Aloud singer was "feeling merry" during one part of the episode, and stripped off to her black bikini to jump in the hot tub at 2am.
Sarah showed off her enviable figure as she splashed around, and gave her male housemates a good look at her impressive cleavage as she shouted how hot it was in the water.
Amelia Lily said: "Sarah's p***ed" before making sure she didn't get her microphone wet.
Paul Danan then shouted "Do Loose Women", but Sarah didn't know what he was talking about, and stood up so she could put her hands on her hips.
"What?" she asked, before turning back around and getting in the water saying: "I'm not loose".
But after realising all her other housemates had gone inside, Sarah groaned and said: "Oh flipping Nora, why does everyone have to break my buzz man?"
She then marched inside wrapped in a towel to where some of the other celebs were sitting on the sofas, and said "Hi mum" to Amelia with a big grin on her face.
She then laughed evilly before sinking to the ground in front of the 22-year-old and leaning forward so her head was in her lap.
Amelia then let out a yelp and cried: "Ah you just bit my leg! Sarah just bit my leg."
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Giggling relentlessly, Sarah then shouted: "Motorboat!" making the others laugh too.
Amelia then stood up and pointed out that her friend had got make up all over her dressing gown.
Sarah covered her mouth while still laughing and said: "Oh my God I'm so sorry!" before Amelia tried to take her to bed.
Big Brother was then seen asking Amelia in the Diary Room if she was alright after Sarah bit her, and she replied: "I'm absolutely fine, it was a playful thing, she didn't do anything wrong.
"It was really quite funny, I love her, she's class".