where to take a lady for lunch and a bit of flirting

Hi every one i want to take a lady out for lunch and am looking for a place in Brisbane CBD that is discreet and offers some privacy even a booth for two in case we get a bit flirty with each other... also does any one know of a good hotel where we could go after for some real fun? Shame adult clubs don't offer rooms to let by the hour or for the day.any one can help? CheersDan