Naruto dj - Love 2

Tsunade uses Naruto to teach Sakura a vital skill. Note: This is a doujin series called Narurabu or Naru Love. Each one apparently focusing on a different Naruto pairings as there's also a ナルヒナの巻, or NaruHina Book. This is ナルサクの巻, or NaruSaku Book.