OK, I have now got the correct information. Lily is at Level 2. Once you take the escalator, turn left and walk all the way straight to the end. Her spa is at the corner, right at the end.
She normally wears red with a very low cut blouse. I am surprised that hardly anyone here mentions her. I went today but she was not there though.
There is also another lady named Amy which is also located at level 2 just opposite Lily's spa, a bit to the front. She also wears a very low cut dress. Anyone heard of Amy or Lily?
I am really not aware of Paris though. Could be that I hardly go to Orchard Towers and even if I go there, I usually look for Lily.