I think it is your site lay-out that is the problem. You give visitors the chance to watch the videos but it isn't clear how they should progress if they like that particular video and want to see more like it (yes I know it is mentioned in the actual video itself but this isn't enough). When the video finishes playing now, all you have at the moment is a tiny logo for the website in question in the bottom right hand corner of the Media Player - you need to make it MUCH easier for the horny surfer to move on.
Think of it this way . . . the ONLY purpose of your videos is to get the surfer from your site to the sponsors website (in your case GiveMePink, AllInternal, AssTraffic, etc . .). You're not there to entertain, you're not there to have the most beautiful site, you are ONLY there to pass possible sales leads to your sponsor sites.
To fix this problem I would have a banner and text beneath each video so its obvious and easy that if they liked that video they can click there and see more like it.
The other thing I would query is the dates on your site suggest you haven't updated it since March 2009 (with most of the updates being in 2008) - so I would get your content updating more regularly - look into your sponsors RSS feeds to do this automatically.
