after few conversation with her... I found out how to get DFK easily from Sara...
first of all, don't try to kiss her before mouth wash that she gives you. she buys special brand mouth wash to do DFK.
second, touch her nice and gentle,
the last, use smoothly your tongue
omg
if you don't do it she might think you don't like kiss.
I've never given this kind of advice before....
If you like aggressive crazy provider, avoid her.
I know she'll grow up as our girls did.