.NET XmlReader on SslStream - reading multiple XMLs from stream - obtatining XmlDocument

I have a TCP connection wrapped around by SslStream .NET object. The remote server sends spontanous XML messages that I need to receive and parse. I use XmlReader and parse the document manually. I have no schema, I parse the incoming messages one by using XmlReader interface. Is it possible to obtain somehow XmlDocument objects from this XmlStrem?I have a TCP connection wrapped around by SslSt