Sex

From Frikipedia

An activity people turn to when they've run out of porn.

It is impossible to have sex after the age of 25. At this point you must have relationships. Which are just like sex, just a whole lot less fun and more time consuming.

At Imperial College, it is pot nossible to have either sex or relationships, unless you outsource.

It was invented by Jeremiah Jones after he had stumbled upon puberty and hair in places where there had been no hair before.