Had a nice time at 7 Lotus on a Sunday, up kind of near Wynyard in the cbd. Not sure how it is during the week though. And 5A Erskine St has a couple milfs that'll give a good NHJ. Can't remember her name but the older Korean gal was a delight to chat with and knew how to work a cock.
You're really not far from the staples like Ginza and so on, near Central. If you want a FS with a hottie I'd make the 15 min walk.