At the time Sybok met Peter and decided to stay with him for a while, he had no idea of the existence of the pirates. Afterwards, he was only peripherally aware of them since he did not participate in the raids of their vessel which Peter and his "Lost boys" frequently undertook.
When things at the dwelling of the Lost Boys - which was a massive tree - got too rowdy for his tastes, he flew back to the fortress. He soon found that he couldn't stay away from the humans whom he found extremely fascinating for too long though. In the end, he ended up alternating spending his time at the fortress or amongst the Lost Boys depending on his mood. While he stayed with the Lost Boys, he took meals with them, participated in any number of their games and activities, put up with their constant teasing over the fact that he "has pointy ears like the new Captain's got", and slept in the special place in the tree that they had prepared for him.
One day, he followed Peter on his trip to Earth to find someone to join the Lost Boys as he did from time to time over the centuries.
"Much has changed since I was last here." Peter said as they flew over the human city of San Francisco which was the capitol of the Federation.
To him, the bustling metropolis of San Francisco was incredibly fascinating and incredibly cold. He hadn't seen so many people of any species before in his entire life. From his vantage point, they looked like small insects which scurried about from building to building. Twice he and Peter had had to turn to avoid being hit by shuttles which were making their way either across the planet or up through the atmosphere into space.
"When were you last here?" he asked Peter.
"About a hundred years ago, back when I brought Johnny with me." Peter replied as he swooped lower over the city, looking for an open window.
"Why haven't you visited in a hundred years?" he asked as he followed Peter without a backwards glance at the compound they had just flown over in which the Vulcan Embassy was located. He'd left the part of his life which contained his father who was possibly at the Embassy at that very moment behind long ago, and as far as he was concerned he didn't need any reminders of it.
"Because everything around here changes." Peter replied as he continued a search that might be completely futile considering modern building styles. "I like Neverland better, things don't change as much there."
"Why did you come back tonight then?" he asked.
"To see how much everything has changed since the last time stupid." Peter replied before turning back to his search.
He decided to remain silent. Peter's logic was quite often contradictory, and he sometimes became violent if you questioned it. He'd learned that one the hard way.
"There's an open window over there, I'm going to have a look at what's inside. You coming?" Peter said a few minutes later before swooping down towards the open window he'd spotted without waiting to see if he would follow.
He followed after Peter, not wanting to get lost above or in this unfamiliar city. He too was curious as to what may be beyond the open window as well.
When they reached the window which turned out to be a fifth story window in a hotel that was a relic from a previous age, they peered inside. In the room beyond a young boy was telling a child he presumed to be the boy's younger brother based on shared characteristics about how he was going to join Starfleet like his father, and how he was going to be the captain of his own ship. The smaller child who was under the covers in one of the beds was clutching a plush toy which looked like a hippopotamus and listening raptly to the older boy's speech.
"...And then Jimmy, I'm going to explore the galaxy and see everything." the older boy who was standing on the other of the room's two beds said.
It was at this point that the door that adjoined the room to the one next to it opened and a blonde woman who bore a strong resemblance to both boys entered.
"I won't tell you again George, go to sleep. You're keeping Jimmy awake." the woman said as she tucked the boy who had hastily dove under the covers when the door opened in.
"Yes mother." the boy named George said as the woman moved to tuck the smaller boy in.
"Let me close the window, it's freezing in here." the woman said as she walked towards the open window he and Peter were peering through.
"But, I want it open so Peter can come." the boy named Jimmy said.
"Honey, Peter Pan is just a story." the woman said as her hand moved towards the open window.
"Leave it open, or I won't go to sleep." the boy named Jimmy said, pouting and crossing his arms.
"Fine. But, if you're not asleep in ten minutes I won't take you to see the Starfleet Headquarters tomorrow." the woman said as she moved away from the window and went back to her room.
When the blonde haired woman in the other room was finally asleep, Peter called Tink to his side and silently crept into the room which the two boys occupied. He then gently shook both boys awake. Groggily, little Jimmy who was "this many" and his big brother George who was proud to say he was eight and a half opened their eyes and looked at the intruder.
"Well, now that you two are awake." Peter said with a grin as he stood three feet off the floor. "How would you two like to go to Neverland with me?"
"Can I really?" the boy named Jimmy asked eagerly as he bounced up and down on his bed in excitement.
"Yes." Peter said with a grin.
"Really, really?" the boy named Jimmy asked.
"Yes, you really really can." Peter replied with a laugh as he gestured for the luminous being whose name was Tinkerbell to come over to Jimmy's bed. "Tink here will sprinkle you with fairy dust, and you'll be able to fly to Neverland with me."
"That's scientifically impossible." the boy named George who didn't seem half as excited at the prospect of a trip to Neverland said.
"I take it you're not coming then." Peter said as the grin slipped off his face.
"No, and I should tell mom that you're in here." George said as he threw off the bedcovers and moved towards the door that separated the boys' room from their mother's.
"Well Jimmy, I guess that it's just you and me then. Think about something happy and we'll blow this Popsicle stand." Peter said as he turned back towards the excited four year-old who was already flying around the room with as smile.
"Mom's never going to believe this." George Samuel Kirk said as his little brother flew up and out into the night sky and disappeared with a pair of strange boys, one of which looked like a Vulcan.