London - It was a 'Can you believe I fathered him with just one testicle? Imagine how he would have turned out if I had had two?' kinda moment according to Carole and Michael Middleton's description of their first tête-à-tête with Charles and Camilla.
And tonight a video of it's gone viral on the net after someone posted it anonymously on the Royal YouBoob! channel.
Apparently the footage records the ghastly social climber family's likening their first royal encounter with the Prince of Wales & Co to scenes from the 2004 movie starring Robert De Niro and Ben Stiller.
The video diary's suspected existence was always rubbished until it suddenly popped up in public on the eve of St Valentine's.
"There'll be hell to pay for if HM sees it," Palace Chamberlain Lord Luce-Cannon warned tonight.
"Best double her largactil dose at bedtime, or it will be Curtains! in the morning when it's all over the bloody breakfast news."
The constitutional implications are totally heir-raising.