See what happens if he removes the skin.

Naruto couldn't help but wonder. Was it the skin that inflated or had he himself magically been inflated to assume Tsunade's shape? Removing the suit would solve this conundrum, he thought. Carefully pinched his upper lip and slowly began to peel the suit off.

This was a strangely surreal process. It was almost like he was climbing his way out of Tsunade's mouth. By the time he had peeled away Tsunade's face from his own, he looked in the mirror and noticed that His own face maintained the same features as Tsunade minus the skin color and hair.

"Wow I really inflated into Granny, this is going to be so cool!" said Naruto, still in Tsunade's voice.

He continued to pull the suit off his body. It snagged a bit when it hit his new massive breasts, but with a small tug and a wobble from his bosom, the suit was freed and continued to work its way down his body. His hips posed a second but less challenging obstacle from which Naruto freed with a slight pull. Finally the suit came to his feet, which Naruto popped out with two small FLOOP's. Dusting himself off and he examined the mirror's reflection.

Naruto's body was still tanner then Tsunade's, there were whisker marks on his cheek, and his hair was the same spiky yellow style. But aside from that Naruto looked completely like Tsunade in every way, including in gender.

"Hah," said Naruto, "I could probably pass off as Hokage with a wig or something."

Quickly he put on Tsunade's clothing, which was soft and fit him very nicely. He tried his best to cover up his cleavage but eventually gave up and wore Tsunade's outfit as she normally would.

"Time to hit the town!" yelled Naruto.