London - As the world’s most famous sex therapist, Dr Ruth Westheimer is the author of more than 40 books, has fronted TV advice shows and met everyone from Princess Diana and Elizabeth Taylor to Presidents Obama, Clinton and Trump.
Yet she remains unequivocal about one of her proudest achievements: "It was wonderful," she says, "to teach the British about orgasms!"
Her TV show, Good Sex!, made for eye-opening viewing when it aired on C4 in the Eighties, but viewers couldn’t help but warm to the diminutive therapist as she talked about "rrrrrelationships" and "errrrroticism" in her distinctive German burr, punctuating her advice with that trademark high-pitched giggle.
She revolutionised the way people talked more openly about sex, "And I loved coming to England," she says. "It made me smile to think of the British with their umbrellas and top hats being in bed."
Dr. Ruth is 91 (which explains the top hat reference), though in matters of sex, she shows no signs of slowing down.