SASHA Walpole said she “almost fell off her sofa” when she found out Prince Harry had described their romp in his book.
The Sun exclusively revealed the 40-year-old mum was the “older” woman who took Harry‘s virginity in a grassy field behind a busy pub when he was 16.
Speaking to Piers Morgan on TalkTV, Sasha told how she had no idea Harry had revealed the details of their field bonk until a friend messaged her.
In an interview aired on Thursday evening, she said: “[I found out] when my friend send me a screenshot via WhatsApp.
“I was just sitting on my sofa watching telly TV. I didn’t quite know what to do about it.
“I almost fell off my sofa.”
Sasha told The Sun how the pair had a passionate five-minute tryst while the royal’s security searched for him in a blue Ford Fiesta.
The duo never spoke again and their moment remained a secret – until the Duke dropped the bomb in his memoir Spare.
She told Piers she was in “disbelief” about how much detail Harry went into in his book.
Sasha added how she wished Harry had given her a “heads-up” before dishing out the details – especially after having to fess up to her dad.
The mum-of-two said she lifted the lid on her secret after 21 years as it became a “ticking timebomb”.
Sasha said: “People are asking family and friends, ‘Oh yeah, we know who it is’ and then suddenly it’s just the reality of this isn’t going to go away.
“Forever this is going to flare up until they know who it is, they’re going to be questioning people and yes I could not have said anything but then it’s never going to stop… this is a means to an end.”
Harry, who at 38 is just two years younger, sparked the worldwide guessing game after his memoir Spare disclosed that he had first had sex with an older lover.
He wrote that he was aged 17.
But Sasha set the record straight, telling The Sun: “I am the woman who took Harry’s virginity. It was literally wham-bam between two friends. The sex was passionate and sparky because we shouldn’t have been doing it.
“One thing just quickly led to another. We ended up on the floor.”
The one-off encounter took place in a meadow behind the car park of the historic Vine Tree Inn in Norton, Wiltshire, in July 2001.
At the time Harry was just 16 — a year younger than his autobiography claims.
Harry and Sasha, who now works as a digger driver, knew each other from when she worked as a stable girl at Highgrove, the country retreat of King Charles, and previously enjoyed trips to polo matches together.
The pair had sex after downing shots and leaving a party held at the pub to mark Sasha’s 19th birthday.