In scenes set to air on the Channel 5 reality series this evening, the 35-year-old Girls Aloud singer blushed after Sam Thompson managed to accidentally talk about the clandestine smooch.
A new video released from tonight’s episode showed the pop star in the garden talking to the Made In Chelsea star, 24, when she inadvertently made the confession.
Sam was heard teasing Sarah, claiming he had seen her up close and personal with Chad, 30, in the kitchen.
“You didn’t see anything!” Sarah hit back, as Sam told her he had apparently gone to get a glass of water while the couple were in there.Related articles
Sarah’s face dropped as she appeared to believe him and looked panicked as she asked: “When?”
But Sam simply stayed silent, leading Sarah to guiltily admit: “It was a one-off, thank you. Emotions were very high.”
Later on in the footage Sam was hard yelling: “I knew it! I didn’t even see anything!”
His words led Sarah to end up in stitches when she realised she’d been duped into sharing her saucy story with her housemates.
CHANNEL 5Sam Thompson gets Sarah Harding to reveal her secret kiss on Celebrity Big Brother
CHANNEL 5Sam Thompson uncovers Sarah Harding's secret on Celebrity Big Brother
Right now I really just want to draw a line under it. It’s not going to change the fact that we’re friends
After her confession, there was chaos in the garden as everyone cheered on Sarah and Sam yelled: “I knew she did it!”