The screenshot below shows two virtual machines, one of which is running X. Click on it for a full-size version.

The four xterms on the left are the Slackware virtual machine's consoles, and the four on the right are the SuSE virtual machine's three consoles, plus its syslog in a fourth console. The Xnest in back is the local X server for the Slackware machine. The xterm inside it running on the SuSE machine, displaying over to the Slackware X server. The shell inside the xterm is telnetted back to the Slackware machine.