A Monster Cock

Tsunade froze as she turned around, right in front of her was the largest cock she had ever seen. And it was flaccid! Hanging down it already reached Naruto's knee's not to mention being only slightly thinner then his thighs, and Tsunade was a medical Ninja and had been for decades, she'd seen more people naked then almost anyone else alive, to see a cock that big was mind-blowing to her.

Shizune turned around only to give an"Aiieee!" and swayed like she had just been punched. Tsunade got a hold of her self, or at least got enough of a hold to act like she wasn't still entranced by Naruto's monster.

"OK Naruto stretch, then lay down" Tsunade was barely able to sound calm but she managed. Naruto was blushing up a storm but did as told, touching his toes, arching his back, and so on while Tsunade ran a critical eye over him.

Laying down Tsunade held his head straight up, incidentally letting him leer at her tits. "Now stay like this while I check your heartbeat and look for any odd growths."

"WOW!" Naruto jumped as Shizune breathed on his cock, crouching between his legs. But Tsunade pushed him back down.

"Stay still I said." She lectured, massaging his abs as Shizune stayed where she was, watching his cock grow and grow to it's full, hard, size.