Kakashi didn't know whether to laugh or cry at Naruto's antics; he honestly had no idea how to handle this endlessly curious kid. Just as he was feeling helpless, Kushina suddenly stepped forward and gave Naruto a light rap on the head.
Naruto let out a startled "Mom!" followed by a look of shock and confusion. Then, with a rather ditzy little jog over to Sasuke's side, he whispered:
"Sasuke, is that really your mom?"
Sasuke glanced at Naruto, nodded, and answered, "Yeah."
Chapter 138