Actually, it's totally possible to just use the same license twice. Not technically "legal", but Apple doesn't put any copyright protection on their software as far as I know. If you do run into issues, you can always disconnect one of the computers from your network or internet connection; problems usually only arise when the computers can "sense" that they are running the same license through a network. Otherwise it's smooth sailing.
Comments
However, if it's at an office, you gotta get two licenses. It is't that steep.