Izaya approached Hibari and spotted a letter written in his own handwriting which he proceeded to read out loud.
"'Hello, myself! This is Orihara Izaya writing. Welcome to the future, ten years into it, even!' Wow! No way I'd lie to myself. 'Your dream came true and you became a great informant that calls the shots on everything that happens in Tokyo.' Oh right! Yes! Wonder when I lost my virginity. 'I can't tell you much more, I left you a bunch of toys, instructions on how to use them are on the desk, and a cute plaything to boot! Be careful though, Hibari (that's his name) is strong, Shizuo-strong, and he bites, too! Enjoy yourself! You have an hour. Love, Orihara Izaya. PS: Shizu-chan is a catboy now, instructions on how to use him are included as well.' Alright! Cool!"
Most people would be freaked out by this or at least highly suspicious but Izaya was not. He read the instructions and decided to keep the ropes as he cut off Hibari's special uniform. Izaya shook him awake.
"Hello, you must be Hi-chan! Nice to meet you!"
Hibari narrowed his eyes dangerously. The age shift convinced him that this horrible creature was indeed Mukuro.
"Just wait until I am free of these bonds. Enjoy what little life you still have ahead of you."
Izaya cackled merrily and tugged at the ropes.
"Oh? I don't think you're in a position to be barking orders at me, Hi-chan!"
Izaya found more instructions that explained how to activate the odd cubes that did not seem particularly impressive. But as soon as he put the stylish ring into the orifice he found himself in possession of some high class aphrodisiac. Izaya whistled.
"Well I'll be damned. The future is a wonderful place to be."
He poured the purple reddish thick liquid over the ropes and over Hibari's naked skin. Izaya then sat at a desk to watch, gnawing on a marshmallow that he found inside one of the many trippy boxes. Izaya was very familiar with glacial looks of sheer hatred, after all he knew Heiwajima Shizuo better than he would have liked, so he recognized it immediately in the way this Hibari person now glared at him. Hibari made another failed attempt at setting himself free but to no avail.
"You can stop trying now, these are magical it seems. And aren't you…a happy boy."
Izaya's voice dropped a notch to become husky, matching this by running a finger down Hibari's chest, stomach and groin, fingers toying with the bulge there. Hibari made as if to bite but Izaya was forewarned.
"Now this sure is interesting."
Izaya was timing it all and knowing that his schedule was tight he propped Hibari on his belly and produced a box dildo that he proceeded to plunge straight into him in a not too ceremonious way. To his credit Hibari did not even wince at the sudden intrusion, then again his erection was dripping already and much more so was his soft spot was hit. Izaya got rid of the toy altogether and struggled a bit to drop his pants. Teenage Izaya was not half as suave as he would grow up into being and lust clouded his mind enough to keep him from realizing immediately that he needed to unbuckle the belt before he could get to the good part.
"What do you think you're doing?"
"Eh…? Seems pretty obvious to me, Hi-chan. Some needs have to be obeyed and all that."
What Izaya lacked in technique he made up with effort. His thrusts were erratic and so hit and miss that Hibari's already smoldering anger turned into a monstrous thing. Hibari bit his lips shut but each time Izaya moved into him and got it just right he could not suppress the most infuriating moan from bubbling up. He set himself to at least not pushing back into the hardness that filled him and waited for this dreadful Izaya person to lean over enough so that he could bite his neck wide open. Hibari found this image highly appetizing, unfortunately that made him all the more susceptible to the weird gooey stuff that made him burn in a mixture of indignation and raw need.
Izaya moaned shamelessly as he emptied himself in a few hard long thrusts that sent shivers through Hibari's whole body and had him coming against his will, a passing thought that his sofa was being soiled and that this human flea was going to pay.