I think there is also good volume of knowledge on KL. Do your research, checkout internationalsexguide.com in the KL forum. Do some dating site work prior to arrival.
The thing I would like for your Christmas break is a few days with one girl in additional to the punting scene which gets predictable.
My time in KL I spent a few days punting then just invited one girl to stick around. She was happy as she got full payment without having to hope for a punter and I was happy as I didn't have the daily search.