Whose knicker flash?Whose knicker flash?Check in here for a moment of pure celeb mortification.

This posh lady has landed herself in a bit of a flap.

One that exposes her skin-coloured pants to the world at large.

Once more, this actress (ahem) is no spring chicken.

Her bod's still hot, but she's 43 - old enough to know better, some might say.

But age brings no relief to the risk of pant-flashing.

It's a sombre warning that this kind of accident can befall any celeb at any time.

So hold your skirt down (if you're wearing one), as you tromp along into our gallery of pant-flashing celebs, and find out who this luckless lady is.