Scientists have developed a spray on condom that is tailor made to a man's most treasured asset in seconds.
The sheath, invented by the Condom Consultancy in Germany, is made in a chamber that pumps out liquid latex over the man's penis and then dries in 20 to 25 seconds. It is later rolled off like a normal condom. The aim is to cut the drying time to 10 seconds.
Inventor Jan Vinzenz Krause said it is better than the one-size-fits-all versions on sale in shops.
"We thought why not come up with a condom that fits the man rather than vice versa? This would represent a revolution in the condom market," said Krause.
He has filed for a patent for the latex spraying system he invented. "As far as I know our idea is unique," said Krause.
He admits he will have to overcome some legal hurdles and technical niggles before he can bring the product to market, but he already has a working prototype and says the system can cater for most sizes.
"With our technology we could spray a condom on an erect elephant," he declared, not without a hint of pride.
Men who tested the prototype were split in their reactions.
"Some said it's a great idea and would help them because they can't find conventional condoms that fit them," Mr Krause said.
"Others say they can't imagine it working in practice. There's the romance factor: applying the condom does interfere with the sex act."
The spray-on condom will be more expensive than conventional ones. The chamber will cost around £17 and the liquid latex refills, which produce between 10 and 20 condoms depending on size, will be priced at between £5 to £7.