Shortly after Hinata was born, Neji's father decided to tell his son the facts of life. He went to the library and checked out several books on the topic. He was ready.
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One VERY awkward talk later...
"So, son, do you understand what I just told you?" Hizashi Hyuga asked. He felt very uncomfortable.
"Yes, father." Neji replied. "But, I do have one question."
Hizashi gulped. Oh shit. "Ahem....Y...yes, s...suh...son?"
"...Can I have some candy?" Neji asked.
"...Yes. Yes you can."