Enable Remote Desktop (VNC) on Kubuntu
Kubuntu includes the built-in ability to allow other users to control the desktop. Like Ubuntu, you can allow users to access and control the desktop via the VNC client. Unlike Ubuntu, there are a lot more options.
Click on the “Start” button and go to Internet \ Krfb Desktop Sharing
From this screen, you can create “Invitations” to allow another user to view your desktop. You can even send the invitations out via email, and manage invitations that you’ve already created.