Well, when I first got to US for the AEE Vegas first thing they told me is that I look a bit like Jules Jordan - I should have taken advantage of that
Anyway,
http://whois.domaintools.com/hookuptonight.com
doesn't tell much, nor do I know them. And since content partner programs don't allow such watermarking for years it may as well be a true "user uploaded" content, with a bogus nick and registration info.
Sending out a DMCA and checking with somebody, who's taking care of the content partner program for those tubes may help though.