A/N: Just in case someone forgets, this chapter was written by Starred, though I will admit to making some minor changes to it.

Explosive

As Tsuna predicted, it didn't end well. At all.

He knew that Hayato was protective of Tsuna but thanks to the bomber, the young mafia don had more paper work to do. It was great, really great. Tsuna was still trying to stop Hayato from blowing more things which wasn't working at all. He was still demanding the name if the woman who supposedly took 'advantage' of him.

"Hayato, calm down. No one took advantage of me. This is not my kid," Tsuna said while rubbing his temples. He had a headache from all the explosions. He could just see the piles of paper work on his desk when he went to his office.

Hayato didn't hear any of Tsuna's words and continued to scream that when the storm guardian found the wicked seductress he would make her pay for tainting the Primo. The screaming wouldn't have bothered Tsuna so much if it weren't for the bombs that continued to fly in every direction.

Asari stood next to Tsuna, laughing at how his father was now as loud as his Uncle Lawn Head, while Giotto stared at the sight of the three, wondering why they were acting like there weren't bombs were going off everywhere.

"Enough, Hayato," Tsuna ordered, going into boss mode. This was one of those rare times when he used his boss mode on one of his guardians. He only did it when they destroy things and that would cost him on more paper work.

Hayato quickly stopped but not before cursing under his breath. The bomber didn't want to make his boss angrier. He remembered when he saw his boss truly mad once, and it hadn't been pretty.

Tsuna sighed in relief and noticed that Asari had also stopped laughing and was looking at the young mafia don in curiosity since Asari had never seen Tsuna in boss mode. Giotto sighed in relief that bombs weren't going off anymore.

"Primo, please tell me who took advantage of you." Hayato said while looking at Tsuna pleading.

"No one did. He's not my son," Tsuna said, sighing while wondering why Hayato didn't believe him. Okay, he knew that Giotto looked a lot like him but that wasn't an excuse. Did Tsuna's right hand man really think that Tsuna would do such a thing?

Hayato looked ready to protest but the glare Tsuna sent his way made him shut up.

"Kufufu, what's with all the noise?" Mukuro asked as mist appeared in the middle of the room. The mist quickly disappeared when Mukuro stepped out of it.

Tsuna paled slightly at the sight of Mukuro. His mist guardian had a terrible habit of teasing and torturing people, namely Tsuna. Hayato scowled while putting his hands in his pocket ready to throw one of his more explosive bombs at the pineapple illusionist.

Giotto twitched at Mukuro's entrance and moved closer to Tsuna, obviously uncomfortable with another person appearing out of nowhere. Asari wasn't put off at all and greeted Mukuro with a 'Hi, Uncle Pineapple.' Mukuro flinched at the nickname that his 'nephew' had given him but decided to not say anything.

The mismatched eyes landed on the little form of Giotto almost glued to Tsuna's side.

'Seems like Tsunayoshi was having fun when we weren't here,'Mukuro thought in amusement while he smirked.

Tsuna shivered at that smirk. Whenever Mukuro smirked, Tsuna tended not to like what followed.

"Oya oya, Tsunayoshi seems like we've been underestimating you," Mukuro said, enjoying the way Tsuna's face went from shock to horror in a minute.

"W-what! I didn't do anything!" Tsuna exclaimed, keeping an eye on Hayato who was ready to start throwing bombs again.

"Kufufu, that's what everyone says then they get a woman pregnant. I would have expected it from one of us but from you, that's quite surprising." Mukuro said while shaking his head with in disappointment. Tsuna couldn't help but become flustered, undoubtedly giving Mukuro exactly what the illusionist wanted. A 'hiiee' stuck in Tsuna's throat, and the young mafia don thanked God that his other guardians so weren't there. If not this would end in more trouble for him.

Panicking, Tsuna began backing away from his mist guardian. Tsuna knew he was letting his instincts get the better of him, and if Reborn ever saw that Tsuna was breaking the calm and cool demeanor that Reborn's 'training' had drilled into the young mafia don, Tsuna's "tutor" would return from the lovely paid vacation that Tsuna had given (forced on) the hitman. Tsuna shivered in fear, thinking of what would Reborn do if the hitman saw Tsuna being so pathetic and useless. That would mean more training. Tsuna shivered at the thought and cleared his throat, trying not to let his guardians get the better of him.

"Mukuro, I don't know what you're talking about. I haven't spent a night with a woman, if that's what you're insinuating. He's not my son, and I didn't get anyone pregnant."

Mukuro looked at Tsuna again, examining the mafia don to see if he was lying, but Tsuna wasn't.

'Kufufu, this is getting more interesting. They look alike and if you didn't know any better you would think they are son and father,'Mukuro thought while smirking. He knew that if the others were to find out they would make a mess and destroy many things. And destruction of property always amused him.

"Kufufu, alright." Mukuro said while he turned towards Giotto.

"What's your name?"

"He's Giotto," Tsuna responded, pulling the boy closer to him. Giotto hadn't said a word since Hayato had started bombing Tsuna's office. Mukuro nodded while he began to walk away but not before saying 'ciao.'

Tsuna looked at Mukuro retreating form in worry. That look on the illusionist's face meant something bad was going to happen. Real bad. And that something would probably include him and Giotto.

'Why does it always happens to me?'Tsuna thought, cursing his luck.

"Who was that man?" Giotto whispered to Asari.

"That's Uncle Pineapple!" Asari responded while smiling cheerfully.

"Uncle Pineapple?" Giotto asked in wonder, not believing that someone was named like that.

Tsuna turn his attention back to Giotto, when he heard the boy snicker at Mukuro's nickname.

"Giotto, his name is not Uncle Pineapple. It's Mukuro," Tsuna said, while trying to hide his laughter.

"Oh," Giotto said in realization, sounding a little disappointed.

Hayato had stayed silent through the conversation, staring at Giotto intensely.

"Primo, he looks exactly like you." Hayato said while he scowled, still not believing Tsuna since the resemblance between his precious Primo and that kid (as Hayato liked to call him) were too hard to ignore. They looked almost alike except for their hair and eye color.

Tsuna sweatdropped while he rubbed his temples.

"Like I said before. He's not my son," Tsuna said, almost reading his right-hand man thoughts.

Hayato clicked his tongue while looking away.

"Where are we going now?" Giotto asked, grabbing the man's pant leg.

"Going to dinner," Tsuna responded while he took the child back into his arms. Tsuna began walking to dinner while Asari and Hayato followed them, the little boy smiling widely while the older man scowled.

When they got to the dining hall, Tsuna noticed that his guardians hadn't arrived yet. He went to sit at the head of the table and placed Giotto in his lap while trying to hide the boy with the traditional long cape Reborn had forced Tsuna to wear. Hayato sat on his right, and Asari sat next to Hayato and swung his little legs from the high seat.

The first one to come in was Mukuro but Chrome wasn't with him which surprised Tsuna and Hayato since she usually was the one to drag him to dinner. Though she usually went to get Hibari right afterwards, Tsuna usually saw her at least come in with the male illusionist. Mukuro sat on the fourth seat from Tsuna.

"Mukuro, where's Chrome?" Tsuna asked in confusion.

"She was busy doing something, but she'll be coming in a minute. She sent me ahead," He responded while smirking at him. No use making the boss more suspicious. Tsunayoshi's hyper intuition made it hard enough to get things past the boss as it was.

'Seems like my plan is going to take action when everyone comes here,'Mukuro thought while his eyes sparkled with mischief.

Tsuna repressed a shiver of fear when he saw the way Mukuro was smirking. This was bad. His intuition was acting up, and it got something to do with Mukuro.

And he found out why when his guardians came in with different expressions.

'Oh no, Mukuro definitely did something,'Tsuna thought while he groan, hoping that they didn't see Giotto.