The largest number of people to go skinny dipping (swimming naked) in a single event, is 744 people on 31 December 2013 at Midway Beach in Gisborne, New Zealand. The event was organised by New Zealand radio station, The Edge, and the BW Summer Festival.
The biggest penis of any animal, is that of the blue whale, with an average length of about 8 feet (2.4 m), and diameter of about 12-14inches (300-360 mm).
It's testicles weigh about 150-lbs (70Kg) each, leading to an estimate that its ejaculate is around 35 pints (20 litres).
The water boatman (Micronecta scholtzi) is not only the loudest animal on the planet for its size, but it makes its 99.2 decibels sound by rubbing its penis on its abdomen in a process known as "stridulation". Scientists discovered this ability in insects collected from a river in Paris. They write:
The annual spawning of Australia's Great Barrier Reef has been called "The Greatest Sex Show on Earth".
The thinnest condom in the world, is the Chinese-manufactured Aoni, which is just 0.0014 inches (0.036 millimeters) thick, made from latex, and made by Guangzhou Daming United Rubber Products. The company manufactures 200 millions condoms per year.
The world's biggest condom was created by the Guilin Latex Company in 2003, to mark the United Nations World Population Day. Printed with the message of "Control population growth, pay attention to sexual health, prevent AIDS, it was 80 meters high (262 feet) with a circumference of 100m (328), and colour bright yellow.
The longest pubic hair, is recorded to have reached below the knee of woman. British physician and human sexuality researcher Havelock Ellis (1859–1939) wrote:
The pubic hair of women is usually shorter than that of men, [..] In a series of 100 women attended during confinement in London and the north of England I have only once (in a rather blonde Lancashire woman) found the hair on labia reaching a conspicuous length of several inches and forming an obstruction to the manipulations involved in delivery.
The best-selling erotic book series is the Fifty Shades of Grey trilogy, having sold over 100 million copies world wide. Written by E. L. James, the pen name of Erika Leonard, it is an erotic romance that follows the relationship between a college graduate, Anastasia Steele, and a young business magnate, Christian Grey. There are three books in the series:
90 nude passengers flew Naked Air Flight #600, a chartered Boeing 737, from Miami, Florida to Cancun, Mexico, on Saturday 3 May 2003. The event was organised by Castaways Travel of Houston, Texas. Following FAA flight regulations, the crew remained clothed throughout the flight, the passengers disrobing after "take off".
The world's first streaker at a major sporting event, occured on Saturday 20 April 1974 when the then 25-year-old Australian Michael O’Brien, ran naked onto the pitch at half time, during an international rugby match between England and France. Although he won his £10 ($17) bet, O’Brien was arrrested and fined £10.