Sadly i dont know any sites that you can download sim3 or 2 but...if you have lost the disk and you havent got the serial code i would try searching for a crack coder
install on the 2 lappys, download the 'no cd crack' rename the original .exe and move teh crack to the folder that contains the .exe. done.
oh.. your only renaming the original .exe incase something goes wrong. dont replace it, just rename it :p
dont we need the disk to play the game. and this is to play it at the same time?
Oh i dont think you can play it at the same time, cuz you need the disk
Umm... you just install sims 3 on both laptops.