From sex toys and masturbation to Australia's "horniest" capital, a mother-daughter duo has lifted the sheets on what Australians are really doing — and not doing — between them.

Dr Esmé Louise James and statistician Dr Susan James have conducted one of the largest sexuality surveys ever, with more than 10,000 responses from Australia and the world.

The results are anything but vanilla and will be covered in SexTistics , an irreverent documentary series funded by Screen Australia.

Esmé and Susan told Mamamia they uncovered interesting sex patterns across Australian states.

"It looks like Perth might actually be the horniest state. Just overall, they're going at it more frequently there than the other states," Esmé said.

Masturbation, marriage and toys.

The topic of masturbation,

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