Clamping done properly will not desensitize the penis. Although in the above post the guy was talking about using his hand vs an actual Cable Clamp. If you want to know more about clamping with a CC:
MyNewSize™*P.E. Forums :: Index Register as a free member, and you will have access to the instructional vids by myself over there in the Clamping Forum.
Back on the original topic....I've never found porn to "desensitize" me. In fact, I have MORE sex due to porn. I have a regular partner though. I love the female body. Porn is just "icing on the cake" per se. I'm a 'horn dog' and my girl catches me in public checking out other women, but understands that I'm JUST looking. We rent movies together. I do enjoy using porn during girth sessions, because it IS easier to maintain a constant, higher erection level with visual stimulation. I use a 'torrent' program called Utorrent (Free)
µTorrent - The Lightweight and Efficient BitTorrent Client and I get my torrent files (PORN) from a site like:
Pure TnA :: Home Page I'm sure there are others, but it's my personal favorite. Full length movies, as well as short clips like you might find on redtube.com...but usually higher quality and without the spam adds. Damn, I sound like I work for these sites.