No one's PoV:
When Natsu awoke he was startled to realise that the weight on his chest was a sleeping Maho and Miho. Getting out of bed carefully so not to awaken the two sleeping girls, he walked into the bathroom for his morning shower. 10 minutes later he stepped out of the bathroom and quickly got dressed and walked out the door to head to breakfast, pausing slightly to write a short note to the girls. However before he could leave Maho awoke and started rubbing the sleep from her eyes, thinking about the pink haired dragon. However when she couldn't see said man she started to panic and call out frantically thinking she'd been left behind, "Natsu, Natsu where are you?" she shouted out in desperation before hearing the sound of a familiar voice,
"Jeez, what you shouting about I told you I'd be back for…" Natsu started but didn't get to finish before the young girl had wrapped herself around Natsu in an iron grip with tears running down her face.
"I'm sorry I though you were dead and I got scared." Maho spoke up in to a normal person's hearing was a barely audible tone, but then Natsu wasn't normal and his draconic hearing heard every word of it.
The way she said and the look of fear on her face tugged at Natsu's heart strings, he only knew the girl for little over a day now but he felt that he needed to take care of her and protect or at least give her a way to protect herself. He didn't know why he felt this way maybe it was because throughout his life he had taken it upon himself to help anyone that he met that was in need of it or maybe it was that he felt sympathy for the girl.
"It okay I'm not going anywhere, I'll take care of you" He said in a caring tone while placing a hand on her head causing the girl to look at him with disbelief,
"How can you promise that?!" she asked thinking she had misheard him with tears coming to her eyes.
"It doesn't matter, there is no way anyone can defeat a dragon," he said kindly.
Maho could only stare before burying her face in his chest and letting the tears flow, Natsu made no attempt to stop her as she obviously needed this so he just stroked her head reassuringly for the next five minutes until she was finished. "Better?" Natsu asked, "Yeah thanks" Maho answered her voice still a bit hoarse. "Good, go get changed and lets head down for breakfast, while I wake up Miho." Natsu said in an excited voice.
"Ok," Maho said before skipping off into the nearby bathroom.
He walked around to her side of the bed and gently shook her shoulders trying to get her to wake up. Miho just mumbled to herself and then rolled over onto her side all while staying asleep. He tried again but got the same response as before. Suddenly growing tired of the game that they were playing Natsu decided to just shout "MIHO, Wake up!"
Waking up with a start Miho gave a short scream that deafened the boy next to her.
After realising where she was, Miho calmed herself down and glanced to the side saw the pink head clutching his ears in pain. Widening her eyes at what she had done to her new brother she immediately apologised with tears coming into her eyes. "Oh my god, Natsu are you Ok?" She exclaimed in worry.
"I'm fine," he said, letting his ears recover. "It's time to get up, Miho." Said Natsu.
"Urgh, fine."She whined.
10 minutes later:
"Good morning children, I hope you all slept well." Said Shiho.
"Yes mummy!" Said Miho excitedly
"Yeah," said Maho quietly.
"Yeah I did as well," said a certain salmon haired dragon (Natsu).
"Good, good, Well after breakfast it is time that you were all introduced to tanks that you may use." Said Shiho with some amusement in her voice at seeing their reactions.
Natsu paled considerably at the thought of vehicles before he remembered that the god had cured his motion sickness. Miho started dancing around in joy at the prospect of being in a tank "Eek, I hope I get a Tiger 1, they're my favourite!" Shouted Miho in excitement.
Maho just stayed silent, whilst thinking along the same lines as her sister, where she was hoping for a tiger. Natsu just stared into the distance confusedly at everyone's reactions to what they were told.
On the Nishizumi tank training ground:
On the tarmac laid out in front of them were a variety of German WW2 tanks for them to see which one took their fancy. In front of them were 2 pz 111's, 4 panthers, 4 langs, 2 Tiger 1's, 2 Tiger 2's, 1 jadgpanther, 1 Ferdinand, 1 Jadgtiger and the maus.
"Alright, children go to the tank you want to start off with, so you can see which one is the best for you." Said Shiho. Almost immediately Miho and Maho flocked to the Tiger 1. Natsu just stayed with Shiho, not knowing what to do.
"What do I do?" Asked Natsu.
"Just follow them, they will show you, and you'll eventually get the hang of it." Shiho said kindly.
"Okay." Natsu said. Shiho was about to reply when Miho interrupted her saying, "Hurry up, mummy can we get started now?" Miho whined loudly.
"Of course, we can, lets go then." Shiho said.
"Yes!" Screamed Miho.
"Okay Okay, settle down Miho, alright everyone please get in the tank so I can teach you." Shiho said gesturing to the tiger behind them. Everyone quickly got on top of the tank and opened the hatches and got into the cramped interior of the large metal war machine. Once all were seated Shiho started talking again.
Time skip
"That's about it, I believe you are ready to start learning to drive it." Shiho finished, "So who wants to go first?"
Miho immediately raised her hand and shouted, "Me me me, can I go first please?" She screamed.
"Very well Miho, go sit in that seat and wait for me to join you and we'll go to the shooting range for some gunnery practice."
Miho automatically rushed as fast as she could to get to the driver's seat. Moments later her mother joined her in the radio operator's seat.
"Ok Miho, what I want you to do first is to turn that key towards me," She said pointing to the ignition key to Miho's right.
Miho immediately turned the key and the 690 horsepower Maybach engine roared to life.
"Very good, now I want you to push the two levers in front of you forwards gently," Shiho said over the noise of the engine. Miho did just that and the 54 tonne tank lumbered slowly out of the parking bay as it gradually gained speed. As they came to a corner Shiho said "Now then Miho, I want you to pull the right lever towards you and push the left away from you so that we can turn around the corner to the entrance of the range."
Miho again did it flawlessly. As they came towards the range Shiho said Very good Miho, now we need to start slowing down and stop at that parapet, so I want you to gradually pull the two levers towards you."
Miho did and they came to a steady stop in the parapet.
"Alright who's up for some gunnery practice?" Said Shiho.
Miho and Maho put their hands up in the air enthusiastically, whilst Natsu shook his head to say no. Shiho asked why out of confusion, expecting him to be like her two daughters. His response was "I don't want to because with my hearing the noise would cause me to go deaf as they are more sensitive than yours."
"Oh, I see, I had forgotten about that, my apologies, if you want you can do some target practice further along with your dragon form."
"Thank you." Natsu said moving to get out of the tank.
"Have fun!" Shouted Miho.
"Thank you, you to." Said Natsu leaving the tank.
After a minute there was a rushing noise and the crackling of flames and then a terrific roar reverberated around the countryside.
10 minutes later still doing target practice:
Looking down the gun sight Maho watched for the crosshairs to align with the target, before pulling the trigger sending the 88mm shell on its way to the target. Less than a second later a cloud of dust blocked her view of the target, waiting for the dust to settle revealed a large hole in the bullseye of the target. Before she could celebrate, Shiho tapped her on the shoulder and said "Do you want to see Natsu practicing?"
Quickly agreeing Maho opened the nearest her and climbed out and with her mother and sister sat down to watch the crimson dragon practicing. "Where is he?" She asked quietly.
Looking around Miho then said "Wait he's over there." Pointing above them to see the dragon hovering a few hundred metres above and to the right of them. After a minute of just hovering there Miho asked impatiently "What is he doing? I want to see him practice." Maho silently agreed with her. Almost as if he was listening the dragon inhaled quickly and released a massive column of flames mixed with lightning (imagine his LFD roar on tenrou island against Hades). Hitting the ground it created a massive explosion destroying all the surrounding targets and leaving a crater 20 feet deep. The audience could only watch in shock at the crater as Natsu gave off another roar before diving down to land next to the stationary Tiger.
"Ok children it's time to head back, Maho would you like to drive this time?" Shiho said.
"Yes please," Maho replied. The Tiger started moving again and made its way back to the house. Natsu flying overhead.
Back at the house:
Natsu landed quickly and transformed and walked towards them. "That was fun, we should do that again sometime." He said cheerfully.
Shiho walked up to him but said to the two girls, "Can you two go on in? We will catch up with you later, I need to talk with Natsu."
"Ok." They said back.
Once they were out of earshot Shiho quickly said "do you want to join my school's tankery team? You could be our reconnaissance if you want."
"Okay that sounds like fun, how do I join?" He said back.
"You would have to join Kuromorimine high school."
Natsu paled at the word "school" but relented once he realised that he could spend more time with Miho and Maho. "Okay can I join then?"
"Of course, I'll just have to get the board to get you your paperwork and then your in, but I warn you, you'll be the only boy in the school."
"Oh it doesn't matter I'll go to this school so I can look after Miho and Maho." He said already saying what Shiho was about to ask.
"Very well I'll get your paperwork sorted and you'll join with Maho and Miho." She said. "Alright it's time to go in for dinner," Shiho said.