Okay, so I've seen Cathy twice. The confusion seems to stem from the fact that she recently changed locations as well as her business model.
Previously, she worked in Vanier with Monica, the Philipina lady. Back then, she did topless handjob and was a little bit chubby.
Now, she works out of her home in the Bank/Walkley area (although she says "Hunt Club near the airport" in her texts). She's lost a lot of weight and looks great, but unfortunately no longer takes her top off or does handjob. She is professional and DIY only now.
Abby is somebody else entirely. Abby is the one with C sized breasts who does bodyslides and other options. Abby has always been independent. She used to work at Lees Ave, but has since moved.
I hope that clears up any confusion.