I was able to slot Poison Ivy to the Meta Bordello and I've put Batgirl into one of the bordello slots. Banged my head against the wall repeatedly to appease the gods of the random generator matrix but to no avail. I have then dicked around with the registry to get the Poison Ivy v Batgirl scene still without any success.
I really didn't want to play
Windows the Registry Editor any further so I got fed up with all that and just extracted the resources from the game and slammed them together in what is surely an incorrect zoom ratio but at least I got a look at it...
Now that I look at it, this might even be a private room scene.