I'm pretty sure fisting is illegal in certain jurisdictions under local obscenity laws. Doesn't seem very likely that you would get prosecuted for it though.
Here's something on netpond about it:
http://www.***********/members/logs/071798.html
Sorry, I guess they don't allow people to post links to that site I tried to link there. Just replace the asterisks with the name of the site if you want to see the article.
[This message has been edited by evildick (edited 10-22-2001).]