Yes, she appears in all 6 episodes. She's commonly in the early show in the extended versions and then shows up later on stage.
She has a pattern tattooed high between her shoulder blades and her navel is pierced. Not much in the way of distinguishing features other than those.
Let me guess...
This lass is neither your standard one-off club filler nor your hired porn star plant. She appears in several episodes between 2009 and 2010, including the "Holiday Bonus", shown below.
She goes a bit further in one of the 2010 episodes where she blows one of the strippers, but that's as far...