No need to look for hookers...if u want one, they'll find u....
Many hang out in certain bars and clubs and if your not with other girls, they'll approach you. Especially in Tang and Cellar. Also expect to find many Colombian and Russian hookers there too.
As far as ktv's, if you like the girl your with I'd say most of them would go back with u after wards...expect it to cost 1,000 rmb from a nice ktv place in the major cities.
Some hotels have ktv places within them. In my one experience of messin with ktv girls, I just used the hotel room for an hour.
Too make a long story short of my experience, my Chinese friend asked me if I wanted a girl...I joked around and said I wanted 2...within minutes, an additional ktv girl entered the room, and her and the other ktv girl who I had chosen to chill with at the beginning of the night escorted me up to the hotel room. I had fun with both, and had to stop and run to the bathroom every 10 minutes to throw up..... I had drank way too much that night, and never finished the deed
. At least I didnt have to pay for anything since my friend had covered it.