Cameron at PMQs responding to a question by her 'Cameron started laughing after telling Dorries that he knew she was "extremely frustrated".
Provoking MPs' schoolboy mirth at the hint of an innuendo to the female MP, the prime minister joked: "Maybe I should start all over again."
Pausing again, he finally said: "I'm going to give up on this one," and put his hand on the arm of an equally amused Clegg as he set down next to his Lib Dem deputy.'
Arse.