Think Americans are buttoned up in the bedroom? Think again.

Despite the country’s puritan past, the average US citizen has slept with more than 10 people, according to raunchy research into the world’s most promiscuous countries.

NapLab compiled data from various sources to come up with their list, looking at national STI rates, a country’s attitudes to premarital sex and the average number of sex partners, among other things.

America was declared the 15th most promiscuous country on the planet by NapLab, with the average resident sleeping with 10.7 people over the course of their lifetime.

That’s on par with Canada, as our naughty northern neighbors also notch up an average of 10.7 bedroom buddies.

However, Mexicans are less promiscuous than those in the US, with their average citizen sleeping with 9 different people.

Brits were also less likely to have as many sex partners (9.8 on average), as were the Spanish (6.1), the Polish (6) and the Chinese (3.1).

Despite the fact Americans clocked up double digits when it came to the average number of sex partners, a relatively low number of citizens believed having premarital sex was morally acceptable.

Just 65% of US citizens thought it was okay to get steamy in the sheets before you were wed — a small number when compared to most other Western countries.

France had the most lax views when it came to sex before marriage, with 94% saying it was not a moral issue.

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Meanwhile, Australia was named the most promiscuous country in the world, with the average citizen sleeping with 13.3 people and 81% of residents approving of sex before marriage.

Prostitution is also legalized Down Under, while the average Aussie loses their virginity at a younger age than the average American (17.8 years vs 18 years).

Despite their citizens seeming to sleep around more on average, Australia had lower rates of Sexually Transmitted Diseases (STDs) than the US.

The STD rate is 14,454 per 100,000 citizens in Australia, while it’s a far higher 19,900 per 100,000 people in the US.

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India was named by NapLab as the least promiscuous of the 45 countries they examined.

Just 19% of Indians thought pre-marital sex was acceptable, while the average citizen had had just 3 sex partners.

India also had relatively low STD rates when compared to other countries on the list.

1. Australia
2. Brazil
3. Greece
4. Chile
5. New Zealand
6. Germany
7. Italy
8. Switzerland
9. Thailand
10. South Africa

1. Turkey – 14.5
2. Australia – 13.3
3. New Zealand – 13.2
4. South Africa – 12.5
5. Finland – 12.4
6. Norway – 12.1 
7. Italy – 11.8
8. Sweden – 11.8
9. Switzerland – 11.1
10. Ireland – 11.1