The world's oldest sex toy, a 30,000-year-old pre-historic siltstone phallus, was also used as a tool to ignite fires.

The relic, discovered in a cave in Germany, has marks suggesting it was used for striking against flints.

Experts at the University of Tubingen insist the purpose of the stone was to light fire apart from providing sexual pleasure, reports Independent Online.

It also features carved rings around one polished end.

The scientists joined the phallus from more than a dozen fragments found in the cave, reports the New York Daily News.

The multitasking tool had been discarded after being broken. (ANI)

Source: http://story.knoxvilletimes.com/