Is pussy spanking supposed to be very light pats ?

[pluky]

I never knew if I was doing it right, I felt it was wrong because I could never properly hit like I would with ass or such. But in the few videos where I saw it performed, they were also barely hitting, more just patting ? I can't find any good reference that answers my question for good.

When you tell someone to do it, what kind of force is expected to be used ?