If you have not made your trip already I can recommend Seventh Heaven 'gentlemans club' in Roppongi. I've been there recently and about 90-95% of the girls are Russian or Eastern European, etc. Anyway, this is a strip club (down to bottoms only) and you can do a private dance with the ladies (Y7,000 for one song), but unless you are a real high roller you will leave this club and probably every other club of this type alone and broke with blue balls, but have fun and welcome to Japan!