When I was in college, a girlfriend could make me cum by suggestively sucking on my index finger. I think the human brain can mistakenly rewire sensations from one sensitive region to another.
I am wondering if this can happen in women also. Is there a chance that the webbing between your fingers is an erogenous zone with a sneak-path to your nether-regions?
Many of you are familiar with the pressure point between the thumb and fore-finger (thenar space) as a pressure point for relieving headaches. This is a clue that there is sensory wiring which is not usually considered.
It would be nice to have another technique in foreplay to give you ladies more pleasure.
-Doug