Bull and Naruto

Naruto hung his head under the irate glare of his sensei.

"Naruto," Kakashi said with no emotion. "why did fail to inform me about your wound before coming back."

"I erm...didn't think it was a big deal." Naruto said nervously.

"You think a sword running through your chest is no big deal?" Kakashi asked, his single eye narrowing even more. The only reason they found out was because Naruto had painfully pulled the sword out and soon collapsed a few minutes before arriving at Konoha. The blond thought a simple bandage would heal the wound.

"Well, since I heal fast I didn't think my wounds were worth treating compared to Sakura's. I didn't want to hold you guys back from completing the mission."

It was quiet for awhile, until finally Kakashi decided how to teach the blond ninja a lesson.

Kakashi then had an eye smile, this made Naruto uneasy as he knew his sensei was planning something.

"As punishment for failing to inform your team about your injury, you are going to be spending time with one on my ninken until further notice. This made Naruto raise an eyebrow.

"Wait. you're making me look after Pakkun?" If this was true, then Naruto felt relieved that the punishment was light.

Kakashi slammed his hand on to the ground, shouting, "Summoning Jutsu!" He watched as the smoke engulfed him and his blond student, smirked behind his mask. He hoped Naruto enjoyed his new playmate.

Naruto waited in the smoke keeping an eye out for Pakkun, he knew Pakkun was a nindog but-

A wet drop fell on Naruto's head, he then felt something gigantic sniffing at him. The blond felt more wet droplets on him, he slowly turned around and what he saw made him look up and up and up into the panting snout of the biggest Bulldog he's ever seen.