Stupid question (part one)

Who would make the best sex tape?

In between discussions about Kant and 18th century poetry, on what started out as a normal evening at a bar, a group of guys (including some members of this website) raised the question of "who do you want to see in a celebrity sex tape?"  With the seemingly endless celebrities and pseudo-celebrities videotaping themselves bumping uglies only to have that footage mysteriously end up on the internet basically we are at the point where a new celebrity sex tape gets churned out every week and there appears to be the possibility that it can happen to almost everybody not named Taylor Swift.  

The more prominent naughty stars caught on tape include Pamela Anderson, Paris Hilton (the Green Lantern ring lit video), actress Rebecca Gayheart, Dustin Diamond (who made the dirty sanchez well known to all former Saved by the Bell fans), Keeley Hazell, former figure skater Tonya Harding, Kim Kardashian and former Survivor contestant, Jenna Lewis.  I really do not believe that I have ever seen a group of guys think as long and hard as they did for this question.  There must have been easily over $100000 worth of education sitting at that table digging deep into the lowest part of their brains trying to come up with an answer that might trump the previous one.  Yes, this is what guys talk about sometimes.  Along with the more notable celebrities such as Mariah Carey (the craziness factor), Jennifer Love Hewitt and Mandy Moore, the answers to the original question also included some obscure stars such Raven Symone (must be a childhood crush of the guy who suggested it right?) and Sarah Jessica Parker (obviously coming from the only male Sex and the City fan alive).

Things I took into consideration (remember it was a group of somewhat drunk males):

1. Obviously looks are important as this is a visual thing.  We aptly called this the "hotness" factor.
2. The surprise element.  Basically, a girl who is unpredictable in bed gets points.  She has to have some intangibles and there needs to be a few "I cannot believe she just did that" moments in the video.  A good example of this would be Severina Vuckovic, a Croatian pop star known for promoting abstinence, who had a tape of her having sex with a married man show up on the internet forums everywhere. Nobody wants a lay and pray video; it has to be ground and pound.  Of course this brought up the next logical question of what stars we thought might be boring in the sack with everybody agreeing that a sex tape with Beyonce could be a half hour of watching somebody having sex with a wooden board that had a $10000 ring on her finger.
3. Nobody who you want to be your girlfriend can be included which is otherwise known as "Natalie Portman is excluded from this conversation" factor.
4. She cannot have done full blown nudity before the sex tape. Would watching a sex tape with Sharon Stone be that much better than re-watching Basic Instinct or Sliver? 

Using my almost 10 years of post secondary education, I had two suggestions: Hilary Duff and Alicia Keys.  The latter gets extra points for attending Professional Performing Arts School and graduating at 16 as valedictorian because she might get intellectual in the bed and even though I am unsure how, it somehow that has to be worth something.  The kicker is that pre-2002 Britney Spears probably tops this list easily.  There really was nobody from the internet generation who captivated the attention of excess hormone males like she did. Not even a 15lbs heavier Anna Kournikova could match Spears.  Vanity Fair Lindsay Lohan had a chance of reaching that level but her stock, just like Britney's, has fallen so far from where it was.

Now that question is out there in the open, who would you want to see in a sex tape?