Ludwig: Official BBC trailer
Sophie Willan, 37, revealed her boozy romp outside the Beeb’s studios was interrupted by security guards at Media City in Salford, Manchester.
Asked on Never Mind The Buzzcocks about the strangest place she had ever had sex, she confessed: “The Blue Peter garden.
"It was a full moon, I’d drunk a lot of Guinness. There was a big shrub we thought would be a good spot.
“The security came over on those little scooters and said, ‘We can all see you in the studios on CCTV’. I never even got a badge.”
Sophie, who plays Holly Pinder in hit series Ludwig, told the Sky Max game show: “The naughtiest thing I’ve ever done is robbing a Greggs van.
Sophie Willan was caught romping the Blue Peter's garden. (Image: Getty)
"We were pretty drunk and really hungry. A man was unloading the van, so we took one box for each.”
Sophie is originally from Bolton, she rose to fame with the huge success of her quasi-autobiographical sitcom Alma's Not Normal.
The BBC Two heartwarming and humorous series is Sophie's brainchild and has earned her not one, but two BAFTA awards. And Alma's Not Normal season 2 is almost here.
Sophie's also currently starring in the detective dramedy Ludwig, alongside David Mitchell and Anna Maxwell Martin. Being dubbed the "new Jonathan Creek", Sophie plays the part of mysterious Holly Pinder. She also appeared on Taskmaster, coming fourth.
Sophie Willan stars in BBC's Ludwig. (Image: Getty)
Sophie previously worked as an escort to fund her career, and has many wild stories from that time.
Appearing on an episode of Unforgiveable, Sophie told hosts Mel Giedroyc and Lou Sanders she was a "fabulous" escort.
"I had quite a lot of clients," she revealed. "But then I said to my madam, 'Look, I'm knackered.' She didn't listen, she was just sending me one after the other. I was awful by the end."
After getting sacked, Sophie ended up robbing money meant for her madam (which had been stashed in a washing machine), disguised in a garden gnome costume, to fund a trip to Wales to perform the play she'd written called "The Gnome Bandit".
Having spent time in care growing up, Sophie always has a focus on helping others.
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In 2015, she founded Stories of Care, a nonprofit multi-platform literary project, which worked to give new writers, from diverse backgrounds, the chance to get their voices heard.
Sophie secured funding of over £100,000 to get the project off the ground. With that money, the organisation was able to help participants get their foot through the door.
“I do think it’s important to be changing the industry from the inside, isn’t it?” Sophie told The Independent. "There aren’t many opportunities for them to get in the industry; there isn’t the bank of mum and dad."