Author's note: Due to popular demand this is now posted! This is like a sequel to the 'mini version of my heart' but not reading that story won't caus any confusion so its fine if you read this first. The mini version of my heart was just an explanatory story that described how Tsuna and Yamamoto got together! So no worries!

Daddy vs Boyfriend

Chapter 1- Round 1 starts!

Iemitsu Sawada, the lion of the Vongola dynasty and outside advisor of the powerful External Vongola, was humming to himself, a mug of coffee, with the words No.1 Dad, in his hand as he greeted a picture of him, his wife, and super adorable son which was poised perfectly next to his flat screen desktop.

Tonight was another one of those rare nights were he got to talk with the famous hitman Reborn and ask for a status on his family.

And possibly, more pictures so that he can use it to brag to his subordinates about how manly his only son was becoming.

True, Tsuna still looked undeniably feminine with his big brown eyes he inherited from his mother and his pale skin…

But hey? What the use of photo shop?

No one will notice him tweaking the image of his son anyway.

Ding!

GreatestHitmanInTheWorld is online.

"Oh he's finally on!" Iemitsu said excitedly as he put down his cup hurriedly. "Took him, long enough! The signal in Japan must be horrible." He stated as he began to type his message in a hurry.

TsunaAndNanalover1: Reborn old pal! How's it going? You sure took your time!

Iemitsu pressed enter as he watched with anticipation the statement that appeared in his computer screen.

GreatestHitmanInTheWorld is typing a reply.

GreatestHitmanInTheWorld: Sorry, Iemitsu, the pictures were taking a while to upload.

Iemitsu grinned widely at that statement as he drew up a fast reply.

TsunaAndNanalover1: Oh! So there're more pictures! Hurry send them to me! I have to show Oregano and Basil! How's my lovely wife Nana doing? And is Tsuna becoming manlier like his father? Tell me!

Ding!

Wow, that was quick. Iemitsu thought as he saw a reply a few seconds after he sent his message.

GreatestHitmanInTheWorld: Nana is doing fine. She says she misses you and you should come home more often.

Iemistu smiled guiltily at that message as he scratched the back of his head with a small blush.

GreatestHitmanInTheWorld: And about Tsuna, he's doing well in his training so I guess he's becoming less wimpy.

Iemitsu jumped happily at this statement.

TsunaAndNanalover1: Excellent! Now he can get a girlfriend easily! Just like how his old man scored his beautiful wife! Tell him if he needs any advice-

GreatestHitmanInTheWorld: Ah, the pictures are sent already Iemitsu.

PICTURES received. View? Yes or No.

Iemitsu pressed yes immediately, brushing off the fact that Reborn interrupted him before he could send him his reply. He waited patiently as twenty pictures loaded into his screen, automatically set to slide show mode.

The descendant of the Primo smiled as a picture of his beautiful wife, Nana dominated the screen smiling angelically and the old advisor felt the need to brag to his subordinates and show them how beautiful his Nadeshiko was.

But then Iemitsu popped a vein when he imagined his men subordinates drooling over his wife and he dismissed the idea immediately. He had enough trouble with his wife's suitors for a lifetime.

The next picture was of Lambo and I-pin playing around as Nana laughed while watching them.

Iemitsu's expression softened as he looked at the picture. Those two additions to their family were like his own kids. And as long as it made Nana happy, then he didn't mind that they were free loading and causing damage to his house every other day.

Although, the bills were really a pain… He wished they would stop playing with their dangerous toys already.

As Iemitsu browsed the next several pictures he wondered in the back of his mind about his only son, Tsuna.

He wondered if his son was still bitter about the fact that he had left him alone so many years ago. And if Tsuna still hated him for not being there when he was bullied.

He sighed as he pressed the next arrow for the next several pictures. They were now starring Bianchi and that self-proclaimed right hand man of his son.

It wasn't like it was his fault he wasn't there. He had to serve the ninth in Italy and help in protecting his small family. He went home very rarely because there was a chance that his enemies might track down his son and wife if he went home frequently. Also, he had to work so that he could provide a proper life for Tsuna and Nana.

Surely, Tsuna can understand that much right?

But now that Tsuna knows about my job, I hope he understands the situation more. Iemitsu said as he stared at a single picture of his son hiding from Reborn's camera. This time I'll be more like a father and give him advice when it comes to love! I-

Eh?

Iemitsu stopped his inner ranting when he looked at the next picture that stopped him speechless.

It was a picture of one of Tsuna's friends. The tall one who liked baseball and who was once classmates with Tsuna in primary school.

The said boy, had an arm around Tsuna smiling widely as Reborn took their picture and Tsuna still tried to hide his face.

"Hm, he must be Tsuyoshi's son. Takeshi." Iemitsu said trying to calm down his raging heart. Inside he was irritated that someone he barely knew acted so close with his son. Even Hayato maintained a respectable distance when it came to the decimo.

But then the next picture just continued to set Iemitsu's blood boiling.

A small version of Tsuna was kissing the cheek of Takeshi who was blushing and wide-eyed at the sudden affection. Tsuna was at the background, his back on the camera.

"No, no… It must be a small doll of my Tsu-kun." Iemitsu calmed himself as a vein throbbed in his temple and he pressed next.

CRACK!

The mouse in Iemitsu's hand cracked as he held onto it tightly and another picture of Tsuna and Yamamoto popped up on the screen. The two teenage boys were holding smaller versions of the person next to them and were both blushing at the camera.

"Dolls, those are just dolls… No, they don't look like a family with Tsuna and Takeshi being the parents." Iemitsu calmed himself and he harshly pressed the next button, creating a dent on the keyboard in the process.

But the last picture was the final straw.

A smaller version of Takeshi was kissing his adorable son right on the lips! The lips I tell you!

Tsuna's lips which were RESERVED for a girl he was going to take into marriage someday!

Not a guy who could take ADVANTAGE of him in the future!

His son! His pure, adorable, and innocent son!

No! CALM DOWN! Iemitsu said as he exited the slideshow and picked up his mug of coffee. There could a reasonable explanation for this. I'm going to ask Reborn to clear things for me and I'm sure these pictures were just a way for him to mess with me.

The hitman knew how sensitive Iemitsu was when it came to his son.

However…

GreatestHitmanInTheWorld has logged off.

Iemitsu glared at the words on the screen. Now he wouldn't be able to sleep unless he got a confirmation from Reborn that the pictures were fake and were edited for the amusement of the hitman. The old advisor began thinking of a plan that involved making an expensive international call to their house and possibly disturbing his beautiful wife's beauty sleep-

However, these plans were put on hold when he saw something on the screen.

Reborn had left him some messages before logging off.

GreatestHitmanInTheWorld: Iemitsu, I don't know how long it'll take you to look at those pictures so I'm logging off.

I know that once you're finished you're going to ask a lot of questions especially about the last several pictures.

As a parent, I'm sure you're wondering when your son is going to get himself in a relationship especially since he is at the age where boys are only interested in looking for a potential mate.

So I'm going to say this before you destroy your computer.

Yes, Dame-Tsuna has gotten manlier.

And yes, he has attracted the attention of a few girls like his mist guardian and that Miura girl nearby.

And YES, Tsuna's in a relationship right now but I don't think he'll appreciate any love advice coming from you.

Iemitsu stared at the message in confusion. So his son has become manlier and has gotten the attention of a few cute girls. AND he was already in a relationship? That's a big bonus for him as a father! He was as proud as heck!

But-

What did Reborn meant when he said 'before you destroy your computer'?

Was he going to destroy the computer out of pure joy?

He shook his head at the arcobaleno's weirdness and continued to read the last few lines of his message.

GreatestHitmanInTheWorld: And regarding those pictures…

NO, they weren't edited by photo shop like how you edit Tsuna's pictures before giving them to your subordinates to brag about how manly your son has become.

And how do I know this?

I have my sources Iemitsu. I'm not the greatest hitman in the world for nothing.

YES, the one next to Tsuna is the son of your old friend Tsuyoshi and yes, he is doing fine.

Takeshi is also doing fine and as you remember (after all, you gave him the ring), he is Tsuna's best friend and rain guardian.

So yeah that's it.

Iemitsu stared at the screen. Oh, so Takeshi was Tsuna's best friend! Of course! But then what were those tiny little creatures that looked so much like his son and Takeshi? Dolls right? They were definitely dolls, right?

And also, if Tsuna and Takeshi were only friends, why does Iemitsu get that annoying sense that he wanted to get his son away from Takeshi as soon as possible?

They were friends so it was fine right?

And also, why didn't Reborn tell him who Tsuna was in a relationship with?

Did he have to follow Reborn in twitter to get the answer? The hitman had been bugging him about that for a while now. Even though he already had a billion followers it was still not enough-

Ding!

Iemitsu turned his attention to the screen as he drank his coffee. Reborn went online for a few seconds and logged out again.

GreatestHitmanInTheWorld: Oh, and I forgot about one more thing. The name of Tsuna's new lover.

Iemitsu sweated in anticipation as he scrolled down while still drinking.

GreatestHitmanInTheWorld: You should be proud Iemitsu, he chose a good one.

And he'll be a good boyfriend to your son too.

Iemitsu froze at the word.

Boyfriend…

Boyfriend…!

BOYFRIEND?

CRASH!

The 'No. 1 Dad' mug in Iemitsu's hand fell to the floor as he spitted out his coffee. The heart shape in his mug was perfectly halved in two.

GreatestHitmanInTheWorld: I don't know if your brain is still processing my message but yes, it's a boyfriend.

B-Boyfriend? Was it Hayato after all? He knew it!The Italian blood in him must've woken up when he saw how feminine Tsuna was-

GreatestHitmanInTheWorld: No. it isn't Hayato so put down that gun already.

Iemitsu wasn't even aware he had already pulled out his short silencer gun.

GreatestHitmanInTheWorld: He's stronger than Hayato so you might have a hard time destroying him. And Tsuna really likes him, so good luck in killing him without ruining your father-son bond with Tsuna forever.

Reborn had a point but still… WHO IS IT?

GreatestHitmanInTheWorld: He's a good baseball player and out of Tsuna's guardians he has the most potential to be a hitman-

Potential? Nope, none of those son-seducing-bastards looked like they had potential in becoming a hitman. Damn it, who was it?

GreatestHitmanInTheWorld: : -And if you still don't know after this, then you're really idiotic Iemitsu. Who was with your son in the last few pictures?

Takeshi of course! But he couldn't see what that had to do with anything-

GreatestHitmanInTheWorld: Takeshi Yamamoto. Tsuyoshi Yamamoto's son who likes baseball, is strong, and has great potential.

-Yes, he knew that too. But still, what did that information have to do with anything?

GreatestHitmanInTheWorld: Idiot. HE, Yamamoto Takeshi, is your son's new boyfriend.

Boyfriend…

Boyfriend…!

BOYFRIEND?

Silence.

GreatestHitmanInTheWorld: Oh by the way Iemitsu, before you destroy this flat screen computer… I'd like to remind you that it costs about ¥1,989,767,027-

CRASH!

Iemitsu rose out of the rubble that was the expensive computer he was chatting with Reborn in. He had a determined expression on his face as rage pumped his blood to his head.

It looks like he had to make good with Nana's request on him coming home more often.

"Don't worry Tsu-kun, papa's coming home." He said darkly as he turned to leave the room and arrange an early flight to Japan.

He was going to destroy the man that dared step into the Sawada household to claim his son!

Meanwhile…

"Achoo!" Tsuna sneezed as he covered his red face. Beside him, he felt Yamamoto stir and place his arms around the brunet's waist.

"Mhm, you okay Tsuna? Are you cold?" Yamamoto yawned sleepily as he blinked his sleepy amber eyes at the sky beside him. Tsuna rubbed his nose and sniffled.

"I'm fine. I just got a bad feeling that's all." Tsuna stated, his face still red but for a different reason now. Yamamoto, Tsuna, and Gokudera were having one of their infamous sleepovers in the Sawada household.

"Maa, maa if you're scared you can tell me." Yamamoto teased. "I'll hug you until you feel better."

Tsuna's blush deepened as he looked away. "I-I'm not scared."

Yamamoto laughed. "Sure you aren't." But then the baseball idol looked up and he saw Reborn sleeping on top of a hammock. "Huh, so the kid's back."

"Huh? Why? Reborn left?" Tsuna asked in confusion as he looked at what Yamamoto was looking at.

"Yeah, he went to find a good signal so that he could chat with your dad." Yamamoto said as he shifted closer to the boss.

"Oh. He did?" Tsuna said as he laid his head on Yamamoto's chest and closed his eyes. But then his brown eyes snapped open in horror.

"HE DID WHAT?"

Tsuna was sitting frozen and tense in front of the door of the Sawada household. He was biting his lip and staring at the door with wide and horrified eyes.

He had woken up to distressing news the moment he came rushing down and saw his mom preparing a feast.

His father was coming home.

And the brunet had a bad feeling it had something to do with what he and Reborn had been talking about last night.

His relationship with Yamamoto.

"Ohayo Sawada-san!" He heard Yamamoto greet his mother as he came down the kitchen. Tsuna blushed and smiled to himself.

Yamamoto was the perfect boyfriend. Greeting his parents and any friends of his in politeness. He wasn't clingy or obsessive and was especially sweet in just the right times. He was also very understanding, can cook, good with sports, incredibly tall, and…

Tsuna's face exploded into red as his mind continued to think about his boyfriend who was but a few feet away.

"Tsuna, ohayo!" A kiss on his cheek suddenly snapped the brunet out of his thoughts as he turned and saw the smiling face of the rain.

"O-Ohayo Yamamoto…" Tsuna blushed with a small nod.

"Have you been up this whole time? Weren't you able to sleep well?" Yamamoto asked worriedly as he sat beside Tsuna. The brunet was vaguely aware of something that smelled delicious. When he looked down, he realized that Yamamoto was carrying a big plate filled with food.

"U-Uhm, I just woke up earlier than usual because I heard my dad was coming home." Tsuna sighed and Yamamoto's eyes narrowed. He knew how touchy the subject between Tsuna and his father was.

"Are you worried about something?" Yamamoto said as he picked up a delicious looking fried shrimp from the pile.

Tsuna turned his worried eyes at the baseball idol. "I'm worried about what dad would do to you."

At those words, Yamamoto laughed. He placed the fried shrimp in front of Tsuna's face. "Are you worried he might assassinate me or something?"

Tsuna sweat dropped. I'm exactly worried about that. But then the brunet swallowed when Yamamoto wiggled the shrimp in front of him and hesitantly, Tsuna opened his mouth to bite on the delicious piece of food.

The decimo blushed at this but Yamamoto laughed at the cuteness of his boss.

"Maa, maa… We'll get through this together Tsuna. If you really think this is something to be worried about, then I'll be in my best behavior and I won't let my guard down around your dad." Yamamoto said as he continued feeding his boss with various food from the plate.

Tsuna smiled at the rain guardian gratefully. It seemed like Yamamoto understood the gravity of the situation well. "But Yamamoto, no matter what happens, I want you to be yourself okay?"

"Hm?" Yamamoto tiled his head with a smile. "What's that about? Do you think I'm going to pretend to be someone one else to please your dad?" He asked teasingly.

Tsuna chewed and swallowed. "Well, I just want to show my dad exactly what I like about you. Even if he disapproves, I won't listen to him." He puffed his cheeks in annoyance.

Yamamoto's eyes softened and he placed his arm around the decimo. "That means a lot coming from you Tsuna. I'll do my best to get in your dad's good books!" He smiled.

Tsuna blinked and smiled as he leaned against the baseball idol. Behind him, he could hear his mother quietly squealing by the kitchen but he didn't mind. His mother was okay with him and Yamamoto and that was what mattered to Tsuna.

His father on the other hand… was a different story.

BANG!

Tsuna and Yamamoto jumped apart when the door opened in a loud bang. A familiar, muscular, and tall man with dirty blond hair entered with his usual mining clothes and a huge baggage that made Tsuna's senses ring.

"Nana! I'm home!" Iemitsu called out and Nana jumped as she greeted her husband happily.

"Dear, you're back! That was faster than I expected!" Nana said and then she turned to Tsuna and Yamamoto. Tsuna was as pale as a ghost and Yamamoto was still smiling. "Tsu-kun, come greet your father. Takeshi-kun, you as well!"

At the mention of 'Takeshi', Iemitsu's narrowed eyes found the young baseball idol with no trouble at all.

"D-Dad…" Tsuna said as he avoided his father's gaze, looking away with a slight frown. Noticing the tense atmosphere around his little lover, Yamamoto shifted closer to the brunet and placed an arm around him as he smiled in comfort.

Tsuna looked up and smiled back at Yamamoto gratefully for his support.

Then and there, Iemitsu should've noticed that whatever he did would never change the relationship between his son and guardian.

But instead of seeing the truth, all the older Sawada saw was red.

Gently pushing his curious wife away, Iemitsu offered a hand to the still sitting down Takeshi and a forced smile was on his face. "Hello there Takeshi-kun, my how you've grown! It's been a long time since I last saw your dad. How's he doing?"

Yamamoto turned his attention away from the brunet and smiled happily and obliviously at the offered hand. He reached out and grabbed it. "Haha! He's doing fine! He still insists in going in those Shibuya trips to catch big fishes! How about you? How are you doing? 'Otou-san'!"

Tsuna gapped, Nana giggled, and Iemitsu's smile twitched as he gripped the hand with incredible force. Yamamoto winced slightly.

What did the brat call him?

Iemitsu's eyes flashed as he gave off a murderous aura.

That's enough!

This is the start of round 1, brat!

Author's note: Failed at making humor again! Haha well I had fun writing this! Everyone please review~! Thank you for your support! And I wish I convert more people into 8027 fans!