A Vancouver city councillor is warning parents and their teens to stay away from after-hours parties aimed at a younger crowd.

Kim Capri says just because liquor licenses aren't required for parties like "Shower Girls" -- where scantily-clad teens as young as 15 danced in showers -- that doesn't mean they're safe.

"If I were to have a 15-year-old daughter, I'd be deeply concerned if she were present at an event like that," said Vancouver city councillor Kim Capri.

Capri says she voted against granting licenses to after-hours clubs, because they're not as closely monitored as regular nightclubs.

"The after-hours clubs don't have to have ID scanning, and they don't have to have the same knowledge of who's coming into those clubs," said Capri.

"They don't have the ability to say, 'This might be a potential gang member, this is a known sexual predator.' We don't know who is coming into those clubs," she said.

On Saturday, CTV News took a hidden camera to "Shower Girls," an event in downtown Vancouver nightclub Gorg-o-Mish that was marketed at 15 to 21-year-olds and billed as "the naughtiest night of your life."

"Dress sexy and play naughty -- bikinis and lingerie are welcome," read advertisements on the popular social networking site Facebook.

After-hours clubs like Gorg-o-Mish can't have liquor licenses, so the usual rule that keeps children out of bars -- 19 or over -- doesn't apply. There's nothing to prevent them from inviting kids as young as 15.

"There's nothing wrong with it -- it's totally legal," said promoter Shahab Vaziri. "It's a safe environment, monitored, on cameras, there's security there, there's no alcohol and no drugs."

But while allowing young people in is legal, photos from the nightclub appear to show a smoking room in the nightclub, which may be illegal under B.C.'s new smoking laws.

Vaziri said he has heard from upset parents about "Shower Girls," and is re-considering the "Lingerie Night" he had planned for May 23.

"I don't think after this incident we're going to go ahead with that -- we'll change the name and go with a different theme," he said.

With a report from CTV British Columbia's Shannon Paterson