Australia seventh best place in the world for lovers
Melbourne University sex and gender expert Dr Lauren Rosewarne said people generally lied about their experiences.
"I suspect the vast majority, unless people are residing in backpacker hostels, that it's unlikely they've had the United Nations of sex," she said.
Gold Coast-based sex and relationships expert Dr Gabrielle Morrissey said Australian men could always improve in the bedroom.
"They often seem on the surface that they're quite flirtatious and friendly and sexy and seductive, but in actuality a lot of people are dissatisfied," she said.
The survey did not ask men to rate their female partners.
