This technique is a form of fingering a
woman's vagina. A man or
woman must make the boy scout sign with their index and middle finger, and then insert these fingers into another
woman's vagina, palm up. As the the fingerer withdraws the fingers, they must curl them up, as if you were beckoning to someone to "come hither", rubbing the G spot. When combined with oral sex techniques, namely licking of the clitoris, this can be very stimulating.