A FusionFall fanfic by [[http://www.fanfiction.net/u/699942/ RoeBoat]].
The war is messing with [[WesternAnimation/Ben10AlienForce Kevin]]'s life-- he's stuck doing behind the scenes work when he'd rather be fighting, he doesn't have time to spend with his girlfriend ([[WesternAnimation/Ben10AlienForce Gwen]], as established in canon), and worst of all, he's growing jealous of [[WesternAnimation/Ben10AlienForce Ben's]] friendship with [[WesternAnimation/DextersLaboratory Dexter]].
He finds kindred spirits in post-amnesia [[WesternAnimation/PowerpuffGirls Buttercup]], whose relationship with Ace has taken a mature turn. While things are happy for a while, the fact of the matter is, they're children fighting a war. And every war has casualties...
Focuses on Kevin, a fairly unpopular character in the fandom because canonically, Kevin doesn't necessarily take the side of the good guys-- he's on the side that benefits him the most. In this case, he's on the good side, but he gets upset when he doesn't get what he wants.
Told in third-person limited through Kevin, which has some... [[UnreliableNarrator interesting results]].
Can be found [[http://www.fanfiction.net/s/6538373/1/Pipeline here]] on Fanfiction.net and [[http://archiveofourown.org/works/524328 here]] on AO3.
!!Provides Examples Of:
* ArcWords: "Sometimes being strong isn't enough. Being brave, and good, and determined isn't enough. Sometimes things just happen." Kevin says it to Blossom and Bubbles after [[spoiler: Buttercup dies]], and Blossom repeats it back to him at the end of the fic when it looks like Ben might not pull through.
* BittersweetEnding: Ben's okay, Ace establishes that he's a good father, the Utoniums are slowly accepting [[spoiler: Buttercup]]'s death, and Kevin and Dexter have agreed to be civil for Ben's sake. But... Ben and Kevin still need to work some things out, Kevin's betrayed Gwen's trust by keeping things from her, [[spoiler: Buttercup and Mac]] [[KilledOffForReal are dead]], Kevin and Dexter will never really be friends, and the war still isn't over. Ouch.
* BloodFromTheMouth: How Kevin knows that Ben's not doing well after the fight with Fusion Buttercup.
* DeathByChildbirth: [[spoiler: Buttercup]], by way of fusion poisoning.
* DeconstructionFic: While it's established in the game that characters die, they're given little time to grieve. This story examines not just the existence of the loss, but what happens when people have to move on from it so quickly.
* HonorBeforeReason: Everyone, constantly.
* HurtComfortFic: The list of characters who feel some kind of loss goes on and on. Sometimes there's comfort, but it's usually the loss of said comfort that triggers the hurt.
* InfantImmortality: Strongly averted.
* InWhichATropeIsDescribed: The way the chapters are titled. Each chapter follows the formula "in which kevin learns [insert plot relevant thing here]..." The last chapter breaks from this, cutting the chapter name short: Chapter 20 is simply called "in which kevin learns."
* IWillOnlySlowYouDown: Ben, to Kevin after Fusion Buttercup kicks their asses and bombs the building they're in. Kevin doesn't buy it.
* KilledOffForReal: [[spoiler: Buttercup]] and [[spoiler: Mac]]
* MoodWhiplash: Everyone's happy because Buttercup has given birth to a healthy baby girl. And then Kevin notices that there's no "mommy and baby doing fine!" announcement... Because [[spoiler: [[DeathByChildbirth Buttercup's dying]] ]].
* NeverGotToSayGoodbye: Well, that's kind of the way Buttercup wanted it, but it really effected Dexter and Blossom the most.
* NoOneGetsLeftBehind: At the end, when Kevin carries an injured Ben out of a crumbling building to safety.
* OfficialCouple: All pairings are canon, at least in FusionFall: [[WesternAnimation/PowerpuffGirls Buttercup and Ace]], [[WesternAnimation/Ben10AlienForce Kevin and Gwen]], and [[WesternAnimation/Ben10AlienForce Ben and Julie]]. All romance is established before the story starts, and with the exception of Buttercup and Ace's subplot, the romance is not the focus of the story.
* TeenPregnancy: Buttercup. Even though she's happily married, and everyone acts like they're much older than they actually are.
* UnreliableNarrator: Holy, Kevin! Even in third person. He's got the best of intentions, really, but his perceptions of the way Ben is acting towards him are much harsher than Ben means them to, and his irrational dislike of Dexter makes the boy genius out to be the bad guy sometimes when they really have similar values and goals.
* WartimeWedding: Buttercup and Ace. Kevin doesn't really get the urgency of the whole thing... Until people start dying, and he does.
* [[WhamEpisode Wham Chapter]]: Chapter 18, when Dexter reveals [[spoiler: that not only did Buttercup know she was [[SecretlyDying dying all along]], but nobody knew but Dexter]].