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This episode meets two couples who can't stop having babies, asks why they can't stop, and follows the highs and lows of life in both super-sized families, including a family holiday for 16.

The Lewis family from Bournemouth have 12 daughters, many of them vying with each other in beauty queen shows. But what effect does all this competition have on the daughters?

Three families with supersized broods are asked is bigger really better, while the Hamlins and their ten kids seek to challenge the perception that large families survive on handouts.