Sure is, when I lived down there a few years back I got some action in all of the main ones on the strip. If you're brave enough just ask the girls when they're walking the floor if they offer any extras with a private dance, nobody ever said no to me but your mileage may vary. Prepare to pay more than what you would at a parlour or brothel though.
Some strippers have been doing extras for years.
It's been well over 10 years since I've gone to a striptease. (Auckland and Hamilton) Can't be bothered anymore because these days you have to be tipping them regularly to get any to come near you. And I want to touch not just look. And by the time you pay the ridiculous prices for a ten minute lap dance, you might as well pay a bit extra for an SM or even an FS at a nearby agency. And these days you can get SWers who are as hot as any stripper. Some are even former strippers.
Once I had two strippers offer to do a double lap dance with sex toy involved. Can't recall how much I paid but they put on a great show for me and even let me operate the vibrator for a bit.
Another time I got a handjob from one.
One of my fondest memories of a stripper was this little busty blonde cutie who approached me out back, moving up really close and rubbing herself against me, telling me she would give me a ten minute lap dance and that if I agreed she had one rule. 'You have to play". Mmmm, that was one very enjoyable lap dance. Just the standard lapdance price too.