Getting error "obj ref" writing XMLNode

Here is the thing... I am generating the following XML.

<Sites count="13" pCount="1">
    <Site>
        <Title>demoPortal</Title>
        <Url>http://localhost:8000</Url>
        <ID>7f673e14-e991-49e8-a639-bd801debaad0</ID>
    </Site>
    <Site>
        <Title>Ct131</Title>
        <Url>http://localhost:8000/personal/ct131</Url>
        <ID>d071b723-3222-49ae-a765-0744b397b5b5</ID>
    </Site>
</Sites>

I have no problems looping through the nodes and writing it. Code below that works...

objNodeList is Sites...

For Each objNode In objNodeList
   For Each objNodeChild In objNode
      Response.Write(objNodeChild.InnerText)
   Next
Next

When I try to write a specific node, lets say title it gives me "Object reference not set to an instance of an object". Below is the code I am using to replace the above item.

Response.Write(objNodeChild("Title").InnerText)

Is there anyting wrong? Please advise...

Thanks,
Shrini