One expert says there's a conversation to be had off the back of a proposed ban on g-string bikinis.

A Taranaki mother is calling for the 'pornographic' swimwear to be barred from public pools and drew over 150 signatures in a petition.  

Sex and Relationship expert Jo Robertson says regardless of the outcome, it's a great conversation starter.

"What do we do when our kids are seeing stuff that, maybe, we don't like? And we're all going to have different ideas about what we do and don't want our kids to see."

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