Here are some sample videos from that Sophie Scott Naughty Office scene.
http://www.naughtyamericavippage.com/fhg/nem/074/gall.php?1150
http://www.naughtyusagirls.com/naughtyoffice/sophiescott/index.html
It's definitely not Heather, but she does look a lot like her. Sophie's boobs are smaller than Heather/Serena's were then and the real clincher is that Heather/Serena already had her tattoo close to her belly button then.
It was a nice thought though