Spoiler alert: Kiss Kiss, Bang Bang
Beta-ed: TattoedLibrarian
Jack searched the roof for John's `cluster bomb` he could laugh now at that joke. It fell through the Rift right here, not anywhere else, ok Jack could believe that coincidence. After all, the Rift gave them quite of bit of space garbage, but that John would follow any kind of bomb here just to save some strangers. That would be a day to see. Jack finally found the container, ordinary resistant space container in which you would hold your possessions on a space trip; just another trick of stealing.
"Hero of the year, 5094., still looking good" John approached him from behind still mocking him because he was stupid enough to save that crate full of people instead to just run off with the money. Jack lost his sense of humour. Jack's phone rang.
"Cute boy" of course he noticed "ringing to warn you about me."
"If you harmed him in any way" Jack said calmly knowing he would tear him in pieces without any regret. Luckily John knew that too.
"You know he's pretty, but stupid" John couldn't resist "you used to have better taste." Like always he thought of himself as a great catch.
"Doesn't look like that from here" Jack wasn't impressed by him in any way, Ianto was world apart from him.
"Radiation cluster bomb, really?" Jack couldn't resist but to laugh at him and his old tricks. There was no real danger, and Jack was in too good of a mood to be bothered by his old lover he used to justify so many times looking away from his deeds. He was over with that loop that always repeated itself like their time in the time loop, always going between damnation and forgiveness.
`Oops I was bad but I'm sexy` he stood there covered in blood smiling like everything was ok.
`That was too horrible; you're crazy you know that` Jack tried to wrap his mind around sight before him.
`Yes but it will undo itself in five days and everyone will live again;` He answered like it was a simple act.
`Still, it isn't right, how will you act when this is over.`
`I'll be good I promise, I'll even go to rehab.` He started his old promise.
`I don't believe you, you'll just bail and skip the boring part leaving it all behind`
`You can make me` He wiggled his eyebrows seductively, it didn't work so well underneath brown blood crust.
`I can never make you do anything.`
`Well if you tell the Time agency how badly all this has influenced me they could make me go.` He made his innocent face.
`If I tell them everything they'll just throw you in jail to rot`
`Uh` he would frown, that frown was adorable on his younger face `they can't know, what will I do if I lose this, you know I suck at being bored and tied down`
`I know` Jack sighed and looked at the dismantled bodies `I'll think of something, but please don't do this again, it makes me sick.`
`My poor baby` he would pout `I was inconsiderate, you're a delicate flower I'll be more discreet next time.`
`What?` Jack would shout but he would just smiled sheepishly.
`It was a joke, can't you tell a joke. You're too jumpy, maybe you would be more relaxed like I am if you'd join me on a little murder spree.`
`What did I say?` at this point Jack would start to lose his patience and he would know how to tell that.
`No more funny shit, let's get out of here, it makes me sick too, I don't know what has gotten into me, those are real creatures, they are not toys, some of them were even human, but they will be that again and I'll let them be, promise.`
`You better, because one of this days this loop will be broken and what if it is now, how would you explain this?`
`Work stress` he offered weakly and led Jack by the hand outside `let's just pretend this never was, I went crazy for awhile, I can't remember a thing, and maybe I wasn't the one who did it. You believe me, don't you? You know me, I always do my best to behave, I can't help it if boredom gets the best of me. I know what you should do, you should keep me better entertained.`
Jack couldn't believe as John tried to lure him in with that old routine like he wasn't on the inside of it, like he doesn't know what that really implies and brings with it. Even if he hadn't lived more than a century from the last time he saw John, he would still see John for what he was, he'd gotten a chance to look at a deranged wizard behind his mirror and he could never fall for his tricks again. Back then John was older than he was and he still treated him like he was youngster, like he could ever ride behind him.
"Think of all of the mischief we could make" he said and Jack looked straight at him seeing him maybe for the first time clearly, knowing that it would reduce itself again to an endless chase where faces were just a blur in their pursuit on something that isn't there, on satisfaction that could never be reached that way. John was full of disdain towards the place that Jack chose to live in but all that Jack could see were all the lights that were lit up in the last few decades, he could trace their growth as he watched the city develop.
Jack couldn't contain his revelations anymore. He planned to play along until he was gone, but he had to put him off, to place him where he belonged, in his almost forgotten past. It was demeaning of him to try to get Jack in that old tune and seduction spiel he never managed to play out right, his aggressive and impatient nature would always get in the way.
"What are those, wrinkles around your eyes" he couldn't resist pointing out the time that had passed leaving him step closer to losing his physical aces he always played upon.
"They're laugh lines" John was offended Jack was immediately in better mood.
"Hell of a good joke" he answered with a smile, happy he closed that loop for good.
"It's you I'm laughing at" he answered bitterly "canister." Jack didn't want to give it away so easily; he just didn't want to play along anymore. He threw the canister behind his back.
"Oops" he mimicked John from long ago and laughed feeling free. John stared at him realising what that laugh meant, it meant that he wouldn't get to play with Jack anymore. His face formed a detached smile then turned cold before he pushed him off the building. As he fall, Jack was calm expecting pain, he should expect that, John wasn't the one to keep a toy after it stopped serving him.
In a flash back scene I picture John like blond Spike from Buffy and young Jack with ruffled hair. Try that its a great combo :)