[[http://www.fanfiction.net/s/2349386/1/REUNION REUNION]] is a KimPossible story written by G-Go. Ron left Kim during college to train himself to become a more effective hero. At their ten-year high-school reunion, Kim and Ron meet up for the first time since their split. She is now engaged to a guy named Ray Beam and Ron has become the costumed crimefighter Ronin. But old flames don't die that easily. And a new villain, Deathray, out to kill Kim...
Its sequel, UNION, can be found [[http://www.fanfiction.net/s/2418921/1/UNION here]]. G-Go has started a new third story in the trilogy, called ION, which can be found [[https://www.fanfiction.net/s/11217799/1/ION here]].
!!This series provides examples of:
* AIIsACrapshoot: Deathray's computer. [[spoiler: In the sequel, it takes on the name Apollyon and dedicates itself to the destruction of [[ApocalypseHow all life on Earth]].]]
* BigDamnHeroes: Shego of all people, when Kim and Ron are cornered by Deathray's clone army.
-->'''Deathray''': You can't possibly expect to come out of this alive. After all, the odds are fifty against two.\\
'''Shego'''(after making her entrance): Fifty against three.
* CloningBlues: Deathray creates multiple clones of himself. [[spoiler: And one of Kim.]]
* ExpendableClone: [[spoiler: Ray replaces Kim with an obedient clone of her before their wedding. When Wade reveals to the congregation that he's really Deathray, he allows the clone to die while he escapes.]]
* KillAllHumans: [[spoiler: The long-term goal of Apollyon in the sequel.]]
* MeaningfulName: Ray Beam [[spoiler: alias Deathray.]]
* NaturalizedName: According to Ron, the origin of the name 'Stoppable'. His great great grandfather, when he first arrived at Ellis Island, declared, "I am Nicholai! I am unstoppable!" The immigration agent wrote down "N. Stoppable". According to Ron, "He thought that's how America worked. Come to America, you get a new life, and a new name. He was actually very proud of it."
* OfficialCouple: Kim and Ron are the main pairing.
* OOCIsSeriousBusiness: The judge is all the more interested in [[VoiceWithAnInternetConnection Wade's]] reason for [[spoiler: stopping Kim's wedding]] because he came out of his room to do it.
* PairTheSpares: [[spoiler: At the end of ''Reunion'', Monique asks Wade to dance at Kim and Ron's wedding reception. In ''Union'', she and Wade are dating.]]
* ScrewThisImOuttaHere: Shego quickly learns to regret her partnership with Deathray, ultimately siding with Kim and Ron against him.
* SpeakNowOrForeverHoldYourPeace: [[spoiler: With Ron framed by Ray Beam for Deathray's crimes, Wade is forced to overcome his agoraphobia (the in-story reason why Wade rarely stepped out of his room in the series) to confront Ray at his wedding to Kim, just as the priest says "Speak now". The priest actually takes him seriously, intrigued that Wade would face a paralyzing phobia to interrupt Kim's wedding.]]
* TookALevelInBadass: Ron Stoppable. Boy HOWDY!