Thank goodness that the last few years have seen something of a trend away from the ridiculously oversized bolt-ons.

Part of the appeal to the girls has to be the same as the whole "I've decided to do anal now - it will be good for my 'career'! " notion. It gives them a new look and hopefully lets them fit in a few more scenes before they are shot out. Of course, it also saddles them with lifelong medical issues that will linger long after the money is gone, but, hey, what porn whore thinks that far ahead?

I guess it also means more money when they feature dance. From 20 feet away in the dark, the implants look slightly less ridiculous.
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[The movie business] is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There is also a negative side. - Hunter S. Thompson