Need some advice? adding two foster cats to our 4 cat house hold

Hi,  I have a co-worker that fell on some hard times and she need some one to foster her two 5 month old kitten. They are brother and sister. I told her I would foster them until she gets back on her feet.

I just need advice on what the best way to integrate them into my 4 cat household of two male cats that are 6 years old and then two year and a half old one male one female. I already have a room set up for them. Is there anything else I would need to do for them.

Sorry if this is on the wrong board. Mods feel free to move to the right board.

You are right to give them their own room to start, while they get used to you and being in a new place.  If they will be with you for a long time, you may want to integrate them with your cats.  If it's only a short time, it's better not to do that.  Here is a good article about integrating cats.

http://www.thecatsite.com/a/how-to-successfully-introduce-cats-the-ultimate-guide