Guys (or girls who get with girls) what two fingers do you use to finger a girl?

[pretty-kitty]

I know this is a really weird question to ask but I have a plan to blindfold my friends with benefits, sit him on the edge of the bed while I prop one leg up on the bed beside him then I'm going to grab his hand suck on two of his fingers making them wet then making him finger me. I want to make sure that when I suck on his fingers I get the right ones, I was thinking his index and middle finger? Also from a guys point of view, does what I want to do sound sexy?

[Pizzalover101]

Index an middle finger

[blvckstone]

middle and ring finger. classic.