There is a one simple plugin for this and it is called the KenPlayer from the XWPThemes. It is not perfect, it does not work all the time, but at least it does the work and it is helpful. It supports the XVideos, but if you are going to use their alternative domains like XVideos2.com, I am not sure if it will work but you might contact the XWPThemes guy and ask him about this.
