Sakura was so busy running her bare feet on Naruto's manhood, and Naruto was still under intense euphoria at this, that neither of them noticed the door opening...
The one opening the door, Hinata Hyuuga, was shocked to find her friend, Sakura, in the act of running her feet on Naruto, whose lower area was exposed to her...
Of course, having seen this, she did what came naturally to her... and fainted.
*THUD*
At the same time, Naruto became overwhelmed by all the pleasure he had experienced at the hands (or feet, as it were) of Sakura, and lost consiousness shortly after Sakura stopped her session to see what the noise was.
She stopped as she looked down and noticed Hinata out cold from the sight she just saw. Sighing, Sakura picked up Hinata and laid her onto Naruto's bed. (They're all at Naruto's apartment)
About a half hour later, Hinata awoke and found herself in a bed, with Naruto still on the floor out cold, but zipped up this time.
"Are you awake now, Hinata?"
Startled a little bit, Hinata quickly looked to her left to find Sakura sitting next to the bed. She immediately recalled the sight she saw and had to ask her friend...
"Um... S-Sakura? W-what were you doing with N-naruto?"
Sakura decided this would be a good time to tell Hinata about her crush's attraction to girl's feet, and when she finished explaining, Hinata was blushing deeply.
"S-so you're telling me that N-naruto would actually like... my f-feet?" Hinata questioned, blushing at the last part.
Smirking a little, Sakura answered, "That's right, and it's very easy to get him aroused, if you know what I mean."
Hinata needed no explanation as she looked toward Naruto and then at her own feet. Now she knew just how to satisfy her crush, and she had a golden opportunity to do just that, so smiling a little bit, Hinata bent down and removed her sandals to expose her bare feet. Upon seeing her actions, Sakura asked,
"Hinata? Are you going to-" but Hinata interrupted
"Y-yes I will, Sakura. I w-want to satisfy N-naruto also."
"Alright then. Do you want to do this yourself, or do you want me to show you how to do it?" Sakura asked Hinata.
Hinata thought about it for a short while before she answered...