Ok. Yazoo is correct, read the FAQ.
But... The quick answer is 3x the listed session price for an overnight session at the girls hotel starting at 1am, and ending around 9 or 10am.
Additional rules of thumb:
- never order an overnight with a girl you haven't already had a successful session with. the temptation to B&S is too great for the agent if you haven't seen the girl yet. Also, even if you get the correct girl, the chemistry might be bad, and you'll have overpaid for a girl you can't get rid if quickly enough.
- If you're going to negotiate: Try to negotiate an earlier start time rather than a lower price.
- If you want the girl to come to your hotel or apartment, you should go to the hotel anyway to go pick her up. Having the agent send the girl to you increases the risk of a B&S, and doesn't give you any recourse if you reject the girl. If you're at the hotel and the wrong girl comes down to meet you, you can always call the agent and ask for the correct girl. Once she's at your door, it's too late to change.
My personal opinion is that overnights have become a waste since the agents pushed the time back to 1am. If you want to sleep with a girl you have a good connection with, then make plans to see her in China instead. Everyone's got QQ.
And a usual, the standard disclaimer apples: Your millage may vary.
-G