Amorous Couple Recorded Having Sex in a Train Station Might Have Been a Prank

This couple was spotted by many passing tourists and travelers expressing their 'love' for each other in Barcelona’s Liceu station.  According to the Mirror, when police arrived to break it up, they told them "go away, don't bother us."  It seems pretty straightforward, they just couldn't wait to get a room. Their motivations were unclear though, they may have been drunk and let their passion get the best of them.  Apparently, the incident is still being investigated because IT COULD HAVE BEEN A PRANK?  

That or this is the most unbelievable use of "it's just a prank, bro" in recorded history.