Customs officers arrested a smuggler with six and a half kilos of cocaine hidden in his shorts after becoming suspicious of his big butt.
Officials at El Prat de Llobregat airport, Barcelona, forced him to strip and found specially made pants with dozens of tiny pockets sewn in to hold the drugs.
The green neoprene pants contained more than 160 pockets for canisters of cocaine.
Drugs investigators were determined to get to the bottom of it when they noticed the smugglers huge backside as he waddled through the airport.
"He wasn't a big man but he has a very bulky rear end and was walking very strangely," said a spokesman.
"Then we saw that whenever he sat down it was like he was sitting on eggshells.
"His backside and his legs looked like they belonged to a weightlifter. We've seen all sorts of stunts but the big pants were a first for us."