hey.
im about to visit amsterdam next week, how much is a nice tip for a "brothel girls" to make her give a better service?

If it's a girl you are only going to see once there is little point in tipping other than a fair reward if it's deserved.

If you want to spend a bit more to get a bit more buying more time upfront can get better service. It may not seem logical but paying 50 for 15-20 minutes or 100 for 20-40 minutes is the same per hour cost...but the longer time will sometimes also lift restrictions such as number of positions and so on.

Of course if you are new to this paying any more than the minimum upfront is risky. You never know going in if you are about to be ripped off, given poor service, or something better.

My advice...

IF you are seeing an unknown and don't expect to see her more than once...

Make sure you negotiate *everything* before going in the room...
Tell her you would like to start for 50, but if things go well you might extend your time...

IF the same thing, but you decide you are going to see her again...

You might give her an extra 20 at the end and tell her you'll be back
(But understand she'll probably expect that extra 20 next time too!)

IF it's someone you've read about here as being really great...

Then start at 100 and tell her you want to take your time...

The topic has been discussed at length here in past. Check out this thread: viewtopic.php?f=2&t=20794