I'd Tell You I Love You, But Then I'd Have to Kill You by Ally Carter

As a sophomore at a secret spy school and the daughter of a former CIA operative, Cammie is sheltered from "normal teenage life" until she meets a local boy while on a class surveillance mission.

awwwwwwww this love story
BUT where's the rest of the series?

Fun little romp into high-school spy romance. Good fun story.

All girl spy boarding school? Is that a book synopsis or a LICENSE TO PRINT MONEY?

Seriously awesome though, oh man. Just the perfect blend of cool spy gadgets and girl power and humor and realistic ~teen girl feelings.~ This series had been vaguely on my to-read list forever and it's definitely as good (or better) than the awesome premise makes it sound.

Also there's not really any strong language (except Farsi! HA GET IT) or sexy stuff so it's a good tween read. Or for anyone really. Holla.