Lifestyle couple from the US looking to play their way through Australia!

We are a married lifestyle couple that are honeymooning throughout Australia in August and September. We've found some parties in Brisbane and Melbourne that match up with when we'll be there, but we'd love to get a local perspective on where to go. We are used to parties that have big group play rooms as we love that orgy feel. Mia is interested in finding a nice Australian to play with as she missed out the first time she was in the country. Help her cross it off her bucket list!