She seems to have gotten it right in the bottom right hand corner, this is of course (as everyone knows in the cat licking business) where most of the flavour is on your everyday, run of the mill house cat.
The others are just foreplay in comparison. But it's a natural progression, so we shouldn't put her down because of it.
Good for you miss. Lick your way to success! Just watch out for moulting season, you're bound to receive the gift of a hairball or two - which are always fun.