I just saw the "extreme penetrations" thread in the National Section and there's some vids of "extreme" fisting. Far from a turn-on for me, but I'm sure other people swear by it. It always reminds me of being on the farm as a kid watching guys impregnant cows by burying their arm in the cows wo-wo and that was not a pleasant sight at that age!
I'm sure it's an odd sensation for both the fistee and fistor, but it's not for me.
Anybody here get into fisting? and what's the pleasure of it for you?