I came across the short video clip that the OP posted a screenshot of a few days ago by complete chance when looking for something entirely different.
So people are not denying this ever took place
@dresper; the point is it is really difficult to find. Seemingly all there is is some guy who did the world's worst job of recording it. And that was just a video using his camera phone of the screen in front of him.
It is so bad that it was almost as if it was just done to prove something (ie. its existence) rather than to atually share the whole thing in full. So the whole thing might be a worthless pursuit. It may even have been the boyfriend who posted that teaser clip for all we know, and it didn't ever actually get broadcast... just recorded.
All that exists on the internet other than that is a 52-second clip of her and her boyfriend kissing on the bed beforehand*. Any files relating to the image you posted are all to this same thing... not the sex itself. *And that is even assuming that it took place on the same occasion. This is what you're claiming to be undeniable proof; even though it doesn't show or tell us anything we didn't already know.
So maybe it was a private cam show or something and somebody recorded it at the time or has a copy and is trying to make money off it by saying "hey look - I have a video of Cheryl Blossom getting fucked... you can have it for X amount of money"
Whilst intriguing, I would not waste too much time looking into it any further. As I said in an earlier post, even if you were to get your hands on it - it seems pretty crappy and would your life be much better for it? There is plenty of hi-res images and videos available of her to enjoy (albeit softcore) rather than searching high and low for this crappy lo-res cam show that seemingly once took place.
You know... this thread was from 3 years ago now. It's probably time for people to move on.