http://www.eunuch.org/Alpha/H/ea_200839the_hunt.htm

The Hunting Grounds by Zipper.

What a twist! If you catch your quarry, usually a criminal, and castrate him, you are allowed to have another child. But who do you trust ON the hunt?! Very good read!

I must agree with Paolo about this story. It was well-written and suspenseful and the ending was also a surprise. I won't reveal it here! Read it and enjoy it for yourself.