WHILE most businesses are dreading the extra security and disruption this weekends G20 will bring, one niche is doing a roaring trade.

Brothel owners throughout the city say they’ve already had a busy week which could become “ridiculous” as more than 7000 leaders, delegates and international media descend for the economic summit.

A spokeswoman for the Viper Room brothel, five minutes from the city and billed as “a world of sophistication and seduction”, said they’ve already had an influx of delegates before the event.

“[It’s been] unusually busy, it’s just ridiculous because of the influx of people,” she said.

“There’re more people, there’re things going on ... People are away from their normal lives and are more likely to indulge in things they wouldn’t normally do ... Visiting a gentleman’s club is usually on that list.”

News_Image_File: City playground: One brothel spokeswoman predicts a busy weekend ahead. Pic: Daniel Munoz/Getty Images.

News_Image_File: More than 7000 extra people are expected in the city over the weekend including members of the Secret Service. Pic: Jacquelyn Martin.

While brothels are prohibited from putting on extra staff, she said they will be prepared for anything over the weekend.

“Barack Obama is probably not going to come through but I’m sure there will be some sneaky people wanting to have some sneaky fun,” she said.

“We never make assumptions, you can never tell. The nature of the business is quite diverse you never know who is going to come through the door.”

She said discretion is key with events like this with private parking and waiting rooms for guests, in case “god forbid, they run into a work colleague.”

“It’s all very discreet. The girls don’t use their real name, the guys don’t use their real names, it’s all cash so there’s no paper trail.”

The city will play host to more than 7000 international leaders, delegates and media over the weekend with another 6000 police and 1000 soldiers out in force.

The $500 million event is the most powerful gathering of world leaders Australia has ever seen, with an equally huge surveillance and security operation to go along with it.

News_Image_File: Thousands of protesters are expected to flood the CBD during the summit. Pic: Adam Head

News_Image_File: Michael Balderstone from the Hemp Embassy protests at the event. Pic: Glenn HampsonNews_Image_File: Meanwhile Joe Hockey holds a Koala on an official walk-through. Pic: Bradley Kanaris/Getty Images.

News_Image_File: Around 6000 police are already in town for the summit. Pic: Daniel Munoz/Getty Images.

Large barricades have already been erected around the city to fence off hotels where leaders are staying, as well as the Brisbane Convention and Exhibition Centre where the summit will take place.

Leaders from South Africa, Saudi Arabia, Brazil and Turkey have already started to arrive for the event, which covers Saturday and Sunday, and follows a week of meetings from union and business executives for the L20 and B20 summit.

A spokesman for Bowen Hills brothel Montecito said they’ve already seen a boom in business which he likened to the influx of US sailors who arrive on shore leave that has always been “really beneficial for us”.

“We are seeing some increase in trade surrounding the event,” he said.

“I would say probably as far back as Monday, Tuesday we started to see more people related to the support staff.”

However he’s unsure how the weekend will play out given that anecdotal evidence suggest their regular client base might plan to skip a night in the city rather than risk the security measures that have put large parts of Brisbane into lockdown.

“A lot of people might be taking off for the weekend. You probably wouldn’t expect a big night in the city. It could hinder regular town based clients but that’s yet to be seen. There’s definitely more people in town now, we’re seeing an increase because of that.”

“Usually for us if you get a festival or a footy game, town’s busy, we’re busy we have that flow on effect,” he said.

“The feedback is we’ve seen a different nations come through related to G20 and there’s been no issues with any of those clients. They’re all extremely respectful and what we consider to be good clients.”

A spokeswoman for Cleos on Nile said they’re open 24 hours a day and also expect to have a busy week ahead.

“We’re hoping to see a lot of new faces,” she said.