Lady Tsunade.....Hey they don't call her hokage for nothin
It's called 'Sexy No Jutsu.'
Try on google, images Naruto Uzumaki+Sexy Jutsu.
He doesn't literally turn into a girl, just knows an illusory jutsu that makes him look like one.
What would any guy do? He turns into a girl and has sex, which is an elaborite form of masterbation. He DID invent Sexy Jutsu AND Harem Jutsu.
Its not the tailed fox who does that, its naruto... its like a substitution jutsu
Ninja Centerfold (aka Sexy No Jutsu) is a jutsu that naruto uses to get what he wants from certain people and by that I mean he transforms into hot girl version of himself.
Naruko is the girl that Naruto transforms into when he uses his sexy jutsu. Naruko is not the "official" name but she is commonly refereed to as Naruko by fans.
sakura, naruto, sakon
Naruto got kissed by filler character Fouka(her jutsu requires that and it kills the person she kissed.) at least four times and Naruto didn't like this(most fo the time they were Shadow Clones). Oh and some girl kissed him in the fifth Shippuden movie I heard(its not what is sounds like. She used a kiss of life jutsu to save him after being fatally injured but then died in the process.) Those are filler actually and he canonically only kissed Sasuke.
the girl would turn into a male simple
Kim Harrison series
Sakura is the best, as far as a fan favorite. Many people will have their own favorites though.