Definitely the plug-in version.  Have to say, this is the ONLY toy that I have not broken...yet

I love using this toy on warm, wet below-the-belt holes so very much that I bring it to every session (although I don't often get a chance to use it).

The steel makes it smooth and heavy - the weight is one of the most intoxicating aspects - as well as simple to sterilize.

It requires a very sensual mindset as a tool like that can seem blunt and crude. But warmed up and lubed up, it has a delicious and definite presence inside of you that can't be experienced by any other means.

Its not exactly a beginner's toy, in fact its often a midway point on your asshole's journey between my tongue and my fist

If you're curious: http://www.njoytoys.com/products/njoyeleven.php

xoxox
Tor