But, you shouldn't intertwine your fingers together when grabbing around someone's body/head/neck as your fingers are relatively weak. It also limits the mobility of your hands. A better way to grab them is to hold your bottom of your hand with one hand and the top of your hand where your thumb is with the other hand, with all your fingers tight together. Or, curl your fingers on both hands and grab the other hand's curled fingers.
I'm a little sad they missed this detail for a princess who's supposed to be really good at kickboxing and other kinds of martial arts.