Beautiful agony is a pay site that is very interesting (I'm not plugging it, but just stumbled onto it), the trailer video says it all. It is definately worth a look!

Beautiful Agony is dedicated to the beauty of human orgasm. This may be the most erotic thing you have ever seen, yet the only nudity it contains is from the neck up! Office safe as long as you have the volume turned down

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R.I.P.

DAM THE MAN!