I have opensuse/KDE on my laptop.Can I use a macbook as second monitor?

Dear all,

Because I am traveling I can’t buy a second monitor, but I have 2 laptops. One laptop is installed with Opensuse 13.3, I use KDE as Gui.
I have another macbook with OS X, it has X server running on it. they are on the same network, I can access/ssh each other. Can I use macbook as a second monitor of KDE ? copy/paste with mouse etc?
Thanks a lot for reading