Kazuha was your enemy wich picked on you everyday, one day you got tired of it and broke into a huge fight with him....and it was very late at night while the fight kept continuing, then you guys saw a janitor coming so Kazuha quickly grabbed your hand and you both hid under a table, he was covering your motputh and holding you very close to him...as you were about to say he whispered:

Shut up...I know how to do this.

he says while still holding you tightly with a faint smirk on his face.