From the Sunday Telegraph, August 12:

Special Delivery
London: It ws a natural birth with a quite unnatural result.

With the help of four midwives and some gas, British mum Amanda Ellerton calmly delivered a 6.5kg baby boy.

Already a mother of two, she had no inkling her newborn would pop out almost as big as a six month old.

"the other two were both average weights and I didn't expect Shaune would be any different," she said

"Once his head appeared I could see the surprise on everyone's faces. It was very painful but it was all worth it for our big bundle of joy."
See, it CAN be done, although I suspect that if she wasn't under the care of midwives that a Ob would have had her in surgery pronto to give birth via c/s.

Another thing that I love is that she had no assumptions that he would be so big - she just did what she had to do to give birth and his size was an unknown factor. Had she been told that he was going to be so big I think the outcome would have been different too.