...

The loaded proposal came after Bush made a good play during practice with the women's beach volleyball team. "Mr President, want to?" bikini-clad player Misty May-Treanor asked him.

 

She was referring to her own bottom. It is a beach volleyball tradition for players to slap one another's backsides after a successful point.

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 http://www.guardian.co.uk/world/2008/aug/11/georgebush.olympics2008