First, I want to make it perfectly clear that I am not a Thunderbirds anorak. I just happen to have a mate - the CEO of a rather successful small airline; who has named one of his B727-200s 'Thunderbird 1' - who is.
He says: "Did you see the episode where Lady Penelope was in here nightie - highly detailed pointy bits and very nice she looked too! In this episode she was on holiday in Monte Carlo, with Parker (of course!), aboard her luxury yacht FAB2. Parker was very "naughty" when he lost said yacht gambling at the casino - and Lady P was not amused."
My mate also admits to having had sexual fantasies about Lady P when he was a kid; and says that it was Thunderbirds that got him into aviation!
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Happiness is a warm L1011