HARD: Wooden penis weighs 280kgHARD: Wooden penis weighs 280kg [EPA]

You might be more used to penises as the object of boyish humour – but not in Japan.

Their annual festival celebrating the penis has taken in place without any cock-ups.

Its believed being surrounded by penises brings great luck and fertility – especially for 42-year-old blokes.

42 is, apparently, the seminal age to celebrate the Honen Fertility Festival.

Men carry an enormous wooden phallus – weighing in at a whopping 280kg – to receive sacred protections.

But there's a catch.

The wooden willy can only take on its full power during a special ritual – when inserted inside the 'Tagata shrine'.

PENIS: Elderly have phallic shopPENIS: Elderly have phallic shop [EPA]

Even the elderly get in on the action – buying up phallus shaped gifts to celebrate the fertility fest.

TASTY: Tourists buy penis sweetsTASTY: Tourists buy penis sweets [EPA]

Tourists line the streets of Komaki City to suck on sweets in the hope of gaining some good luck.

PARTY: Priest joins inPARTY: Priest joins in [EPA]

And even priests enjoy the penis party – performing "purification rituals" to release the full load of good luck.

The festival has grown in popularity in recent years – as tourists flock to get in on the penis action