All in all, Trina's w/u is the best one I've read about
vaginal fisting. It is great for beginners, and should be followed if you're not that experienced. There is one thing that can make your first encounter a bit less fear-provoking. It's called a...
Safety Word.
A
safety word is basically used to put a complete stop on all action. Ideally, it should be a word that you wouldn't normally use in the bedroom. My favorite is "orange". I do NOT recommend "ouch" "woah" or anything along the lines of "
Oh, God! That feels so good."
A different word, let's say "soccer" could be used as a pause word. Especially in fisting, it helps to take your time. This pause word can let you get more comfortable or it can give you the chance to tell your partner something vital. ("I've got to pee", not "I think we should have meat-loaf for dinner".)
So, ladies and gents, bust out the astroglide and enjoy!