For a fisting top, a good FF session is like a meditation.  Written by an actual fisting top, this file will help you become totally focused on your bottom while fist fucking while eliminating distraction and enhancing sensation with appropriate safeties so you can fist safely.

Note: This is a file for fisting tops, if you are looking for a file to help you take a fist, try the partner file Anal Fisting Trainer.