Trip to Norway - Need advise

I have my first business trip to Norway coming up Oct.1st thru Oct.12th. I will be in the Bergen area but might be taking a trip to Oslo, I wanted to see if you have any advise on where to go for the night life and beautiful women in Norway.
Prostitution is illegal and police do not turn a blind eye. Do not try to book a hotel room with a lady friend you do not know - the manager will call the police.

I've had fun in Oslo, but went back to the girl's room. I was just wandering around a busy area and keeping my eye open.

It's the only time I've been in a room with a girl, and another girl brings a 'friend' back, and he tries to do his business unaware of the fact that I am on a mattress behind the sofa. It was quite funny. We got all the normal excuses (e.g. I must have been drinking too much).

The following night I had both of them. I mean the two girls, not the other guy.