Okay, so normally I do Shizaya, but this one is kinda...yeah, both lol, also, my Beta Randomllama has been very busy, so this is the rough version. If you notice errors please, please, PLEASE, inform me of them so that I can edit the error and repost the edited chapter over the unedited one and polish the work as we go. Thanks!

Warnings: YAOI, boy x boy, lemons, language, violence, mpreg, Shizaya AND Izuo. AU and OOC'ness will likely occur. AU because post high school...yeah, it'll be obvious in this prologue OOC because of events occuring differently then they would have causing some modifications in the way which they would act.

Disclaimer: I OWN DURARARA! *dodges vending machine* Okay, okay, sheesh, I think we all know that's just a fantasy...

Things y'all should know:
"Blah" - Speech
"Blah blah blah" - also speech, but the italics mean you can place a little more emphasis on that word.
"BLAH BLAH BLAH!" -Speech, but they're yelling
'Blah' - Thought
[Blah] -Celty (incl. her text messages)
[Blah] - Text message from anyone other than Celty

"So you see Shinra, they could very well love each other, and it's up to us to make them confess!" The strange man finished explaining and sat, watching his eighteen-year-old-son try and think this out.
"Yeah, but…how do you know this will work anyways? I mean I know they've been having sex, but…" The teen frowned adjusting his uniform a little.
"You will do it…when one of them conceives then he'll tell you."
"We're giving it to both of them?"
"Do you know which one bottoms?"

"It…changes. They fight and whoever wins the fight tops," Shinra shrugged, brushing his brown hair out of his glasses.
"Makes sense given it's those two…yes, give it to both, we have no way of knowing which will win today," The man sighed.

It was quite a bit of work for the young soon-to-be doctor to get the small tablet dissolved. For one he chose milk, the obvious choice of course for Shizuo was milk. Izaya was more difficult until the man crumbled it up and hid it in pieces of Ootoro. They had a fight that day too, luckily for the doctor-in-training. If not they may have gotten suspicious with him near consumables for too long, thinking he was trying to experiment on them or something…technically it was his father that was doing that.

"Fuck, you cheated louse!"
"Details, besides I never said I'd fight fair Shizu-chan, you know the deal, strip," The younger raven haired man grinned impishly, his knife still out. Shizuo growled, but the uniform came off. He'd never admit he liked bottoming as much as topping. Izaya would never let him top if he knew that… Izaya stripped too and Shizuo frowned a little, laying on the roof, spreading his legs. He hated how much the flea gloated about it after when Izaya topped, but he did win this time, and it was how they did this.

"Nn! Little w-warning next time?" Shizuo scowled when Izaya went in dry, but he didn't actually care. Pain kinda turned him on, and he knew Izaya was a bit sadistic anyways. Izaya's hazy red eyes glared into Shizuo's gold ones as Izaya began to move in the blonde, slowly at first, but then harder, making Shizuo cry out for more.

"Heh, if I d-didn't know better, I s-swear you liked this Sh-Shizu-chan~" Izaya murmured and Shizuo bit him on the shoulder in protest.
"Ah! Brute! You're the one who likes that," Izaya groaned, leaving a similar mark on Shizuo's chest. The pain and pleasure mingled in Shizuo's brain, signals crossed and heat began to pool in his belly as his need for release rose. Finally Shizuo came first, hating how easily his body reacted to what Izaya did, and Izaya came with two more thrusts inside him, shuddering.

"Sh-shit, I know I've told you to pull out before you cum," Shizuo scowled and Izaya smirked.
"Payback, you came in me last time remember? Besides, I know you like it Shizu-chan~!"
"I said I was sorry! Hey! I do…I do NOT" The blonde blushed vibrantly and Izaya smirked.
"Heh, you keep telling yourself that Shizu-chan~!"

"Shinra…your Dad's a doctor get him to take a look at me," Shizuo groaned, his head in the other man's lap. He'd been puking all week and this was just…too much for him. Shinra frowned and nodded. He'd been hoping Izaya would be the one, but…life it seemed had other plans. He already knew exactly what was wrong with his best friend.

"Yeah, let's go now," He said, standing and the blondes head dropped onto the grass.
"Now?"
"We're skipping anyways, may as well right? Besides, it's just review today." Shizuo nodded and stood, walking slowly behind Shinra as they made their way to where Shingen Kishitani worked.
"Shinra! My boy! What brings you here?"
"Sh-Shizuo-kun is sick Otou-san, I hoped you could look at him,"

"Certainly!" The man jabbed a needle in the blondes arm.
"Ow! Hey, what the hell?"
"Just need some blood! I'll tell you what's wrong after the exams! This is your last year, right? Do well!" The odd man disappeared then leaving a worried brunette and a confused blonde behind him.

"I'm…what?" The blonde stared in horror at the older Kishitani who grinned readily back at him.
"Pregnant, congratulations!"
"I'm a dude,"
"Yes, I know, I had to try and settle you and your friend Izaya down before costs run too high, I mean right now it's cheap things like school buildings, but one day, who knows!"
"Y-YOU DID THIS TO ME?" The examination table was now over the blonde's head, and he turned green.
"Oooh…" He groaned, dropping it.

"Yes…well, Shinra helped,"
"Shizuo-kun, I am so sorry!" Shinra danced nervously from foot to foot.
"H-how…what…what am I supposed to do?" Shizuo asked weakly and Shingen smirked.
"You'll be moved away, someplace no one can see you until the delivery, then you come back like nothing happened. You can raise the child if you want, but I suggest you let me-"
"I'LL DO IT ASS HOLE, YOU ARE NOT TURNING MY KID INTO A SCIENCE EXPERIMENT!"

And so the blonde went with the two Kishitani's out to the country where he met their unusual companion, Celty. He suffered through his pregnancy the best he could, and Celty used her Shadows when it was time to remove the baby with no trace of it having been in him. Of course there were a few photographs of his enlarged belly, much to the blonde's chagrin, but he seemed to be surprisingly maternal.

Of course no explanation was given to anyone else about his absence, or Shinra's for that matter, and when they returned plus one people wondered who the new-borns mother was. Shizuo would never tell. Izaya hated this development.

"Stupid Shizu-chan's no fun now! He won't chase me anymore! We don't even have sex!" Izaya hated that stupid baby boy with his stupid name –Tsukishima- and his stupid Shizuo-brown hair. He had red eyes though, Izaya thought that strange –not that he was one to talk or anything…Oh well, he decided to try and get the information out of the stupid blonde. One way or another…Maybe Shinra would spill…. Of course had he known then how long it would be for anyone to tell him anything, he might not have bothered, but Izaya always had been too curious, and the mystery of whom Shizuo might had cared enough for to have a baby with was too strong a lure for him. He would learn the truth, no matter what he had to do to get it.

He should have just left things be.

Seliphra: Ta daa~! This is the prologue so Chapter 2 is actually Chapter 1...but they'll all have titles, ne?
Izaya: Woot! I topped!
Shizuo: God damn it, why? Whay are you...you like torturing me don't you!
Seliphra: Guilty~! Hey! Here's an interesting fact! Plotbunnies, which are the driving force of many a story, feed off a single source of food...reviews. Without the reviews, the plot bunnies starve and die a very horrible death and so while favourites and alerts are nice, reviews are what keep the plotbunnies working.
Shizuo: She...didn't even deny it...*cry*