Sequel to Ebony.

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Reborn's back stiffened unnoticeably as he felt someone, identified by his senses as his student, drape themselves like a sack of potatoes across it.

He then cursed softly, almost inaudibly, as his brown haired student moaned slightly. Right next to his ear. In a tone that suggested, to the hitman at least, that this should be taken somewhere slightly more... private. But Reborn knew his student, and he was fairly positive that Tsuna wouldn't have the acting skills required to pull this off.

His gulp was almost audible anyways. The whimper from his student's lips was definitely,most assuredly, audible.

Sinful thoughts ran through the hitman's mind, and it took quite a lot of self-control (that had recently vacated the premises) to not 'reschedule' his plans.

Tsuna squirmed on his back slightly.

One of the maids passing the door was startled to hear a growl come from the Decimo's office. She decided that discretion was the better part of valor, and left before any of the room's occupants noticed her.

Inside the room once more, and Reborn's Flames were roiling just under his skin, wishing to claim but unable to due to the Curse. This coaxed a reaction, in the form of a purr, from the Sky who decided it would be okay to use him as a pillow.

Reborn was not entirely pleased. (His pants were too tight now.)

Because he still hadn't stopped growing, he couldn't harmonize with anybody. Being unable to with his Sky was bad enough.

It was the other Sun that tried to take his place in his Sky that made it worse. All of them.

"Reborn."

The hitman felt his ears twitch in the direction of his, as of him fulling aging, Sky at the sound of his name (not his name, why did he do it. Not his name!) escaping in a mumble from those lips (those sinful lips, and why did they have so much power over him?!).

"Yes, student of mine?" It had been that way since he wasn't allowed to die, not by his Sky. His Sky was his after all.

"Stars are still suns, just farther off."

Reborn paused, and once again marveled at his student's Intuition. He still wondered how his student could be so insightful when only half there at best.

A soft, rumbling purr escaped the hitman at the thought. The only Suns currently Bonded to his Sky only had a partial Bond, for all the work most of them put in to make it a Full one.

The same was for the Clouds and Mists come to think of it, and didn't all of Tsuna's Rains have Partial Bonds as well? He had fewer Bonded Lightnings and Storms than anything else, despite those two being the most common Flame Types.

Reborn idly wondered if Tsuna was a True Sky, before dismissing it as nothing more than a fairytale.

A few hours later, in the dead of night, Tsuna cracked an eye open and allowed a small smirk to form on his lips.

Payback, and reassurance all in one! And he got to avoid the Paperwork Shinigami because his Sun (his a possessive voice in the back of his mind hissed) was too 'frustrated' to get him to do it. This was perfect.

Tsuna was the only one who knew the real reason that the Suns Partially Bonded to him never got a stronger Bond, no matter how hard they tried.

He was Sealed until Reborn came. Reborn, the World's Strongest Sun. Tsuna was the only one who knew that the unique way Reborn's Flames manifested in him (Flames that allowed him to host a shape shifting Flame Partner and still be the Strongest Sun, that allowed him to hurt and heal from one instant to the next giving him an edge above all other Suns) was the only type of Sun his Flames would wholeheartedly accept as his. No exceptions. At all.

Reborn wasn't the only one who had strange resonating Flames after all.

Besides, he really wanted to get back at his Sun for the 'kissing lesson' Bull he pulled just so he could kiss his Sky.

Lay Claim to his Sky.

(And maybe Tsuna couldn't wait till the next 'lesson' himself. Not that he would admit it outside the privacy of his own mind.)

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A/N: My headcannon is that neither Reborn or Tsuna have the standard Flame Resonance, for one reason or another.

Yes, this is Tsuna's Revenge Fic™ that literally came to me, like, five seconds before actually writing it. Considering this may or may not take a life of its own, do expect at least one more update for this universe. (I might turn it into a fiction anyways. I like the concepts I played with here.)

And yes, Tsuna is a True Sky. (If I delve deeper into this world, there will be explanations about most of the things mentioned here.)

Well that is all for now minna! Ja ne!