Kirk & Spock, teens on earth

[terinbegins.livejournal.com]

Spock's visiting earth as a teen, staying with his mother's family. He meets a 15 or 16 year old Kirk after his car breaks down and he brings it to the auto repair shop where Jim works. They start hanging out, eventually make out and sleep together.

-There's a scene where Spock bails Kirk out of a bar fight by knocking a guy out with a nerve pinch.
-There's another scene where Spock gets claustrophobic at a carnival, and Jim takes him on the ferris wheel to calm him down.
-T'Pring comes in at the end and tries to convince Spock, and eventually Jim, that Spock's too good for him.
-It ends on a sad/undecided note, I think, with Spock going back to Vulcan, but I think it's just the first installment in a (not yet written) series.

I swear, this fic is on the tip of my brain. Please help me find it!