It's as old as Prince Charles is.
For her wedding, Camilla bought new shoes that got tighter by the hour on the blessed day. Eventually they get back to their suite in W_Castle.
She flopped on the 'marital' bed and said, 'Charles, be a darling and take my shoes off, my feet are killing me.' Charles, ever dutiful, so does but struggles to get the shoe off her swollen feet.
"Harder, Charles, harder!'
"I'm trying, darling, but it's so bloody tight."
"Come on my Prince, give it all you've got!"
At last, the shoe comes free and Camilla moans "Oh God, that's so good." Charles - he just lets out a loud groan of satisfaction.
The Queen and PP are next door, the Queen turns to the Duck and says, "See, Philip, I told you. With a face like that, she had to be a virgin."
Meanwhile, next door, Charles starts on the other shoe. "God, Camilla, this is even tighter than the first one."
Prince Philip to the Queen, "Well, that's my boy, I'm pleased to find out that he's a Navy man."