OP DON'T DO IT!
If you watch the pornz then the Teesside Porn Police will raid your home, take your belongings and charge you for "Viewing da porno".
...
Nah, generally speaking universities don't bother blocking such sites. Too much hassle anyway to try and stop people from watching porn, they usually just say in the uni handbook that watching more extreme porn (I'm assuming to do with children etc) is an offence and will get you kicked out.