This is a request from Autumn. Sonic is 13 and Tails 6.
Disclaimer: I don't own Sonic the hedgehog and never will.
Sonic and Tails walked through the front door of their house exhausted. Eggman had stolen the Master Emerald again and the two of them plus Knuckles went to get it back.
Eggman had used the Master Emerald to power his newest creation the Egg Titan. Sonic had all 7 Chaos Emeralds and had gone Super Sonic to face the Egg Titan while Tails and Knuckles dealt with Eggman's other robots.
Even with the 7 Chaos Emeralds, Super Sonic was no match for the Egg Titan. So when Knuckles had a quick chance turned the Chaos Emeralds into the Super Emeralds by channeling the Master Emeralds power allowing Sonic to go Hyper Sonic.
Tails loved when Sonic had gone super or hyper because his older brother would kick some serious butt. Tails was sad that he didn't have a super form as far as he knew. He tried to use the Chaos Emeralds power before, but nothing happened.
"Hello earth to Tails, do you read me?"
Tails snapped out of his thoughts when Sonic had spoken. "Huh?"
Sonic rolled his eyes. "Well it's about time you came back to reality. I was asking if you wanted Chili Dogs for dinner."
Tails smiled and nodded his head. "Sure."
Sonic smiled. "Okay than." he said walking into the kitchen.
When Sonic had gone into the kitchen, Tails walked over to the couch and sat down. He sighed wishing that he could go super like his older brother. Even Knuckles can go super and hyper, while he can't.
Sonic finished making the Chili Dogs and walked into the Living Room. He saw his little brother staring at the TV with a blank look featured on his face. Sonic could tell that something was bothering his little brother and walked over to the couch and sat down next to Tails causing him to jump.
Tails turned his head and saw his older brother staring at him with a 'what's wrong?' look. He couldn't tell Sonic that nothing was bothering him because of two reasons. One was that he couldn't lie to Sonic and two Sonic could read him like a book.
Tails sighed. "Sonic, do you think that I have a super form?"
Sonic frowned. "I really don't know Tails. You tried to use the Chaos Emeralds, but that didn't work. Hmm maybe you should try to use the Super Emeralds."
Tails' eyes lit up. "Yeah! I never tried to use the Super Emeralds before!"
Sonic smiled. "Well tomorrow we'll head to Angel Island and ask Knuckles if you could try to use the Super Emeralds. In the meantime, let's enjoy ourselves to some nice tasty Chili Dogs." Sonic said holding the plate that had a dozen Chili Dogs on it.
Tails smiled as he and Sonic began eating. When Sonic and Tails were finished eating they watched a movie together before heading to bed.
The next day Sonic and Tails had woken up early and ate breakfast before heading to Angel Island in the Tornado. When they arrived they went up to the Master Emerald Shrine where Knuckles was sitting on the steps of the shrine, looking up at the sky.
When Knuckles heard footsteps his guardian instincts kicked in and he quickly got up in a fighting stance. He dropped his guard down when he saw Sonic and Tails coming toward him and stopped in front of him.
"Is Eggman at it already?" Knuckles asked.
Sonic shook his head. "No, we were wondering if you could turn the Chaos Emeralds into the Super Emeralds?" Sonic asked holding out the 7 Chaos Emeralds.
Knuckles rose an eyebrow. "Why do you want me to turn the Chaos Emeralds into Super Emeralds if Eggman isn't involved?"
"Well Tails wanted to try to use the Super Emeralds to see if he could transform into a super form." Sonic stated.
"You want me to turn the Chaos Emeralds into Super Emeralds just so Tails can discover if he has a super form?" Knuckles asked making sure it wasn't a joke.
Sonic nodded his head. "Yes, I mean it's only fair since it's known that me and you can use both set of emeralds while it's known that Tails can't use the Chaos Emeralds, but not the Super Emeralds."
Knuckles sighed and rubbed his forehead. "You do realize that if Tails can actually use the Super Emeralds to achieve a super form, the Chaos Emeralds will scatter when their power runs out right?"
"I know Knuckles, but it's only fair that Tails tries to use the Super Emeralds powers." Sonic said.
"Why can't he wait until Eggman attacks again to try to use the Super Emeralds?" Knuckles asked.
"I don't want to wait that long!" Tails said finally speaking up.
Knuckles stared at Sonic and Tails for a minute before he sighed. "Fine, but if the Chaos Emeralds scatter then you two will find them by yourselves."
Sonic and Tails nodded their heads.
"Alright then, I'll be right back." Knuckles said taking the Chaos Emeralds and heading up to the Master Emerald.
A minute later, Knuckles came back down holding the 7 Super Emeralds. He placed them on the ground in front of Tails and sat down on the steps of the Master Emerald Shrine watching Tails.
Tails looked at Sonic. "So how do you tap into the emeralds powers Sonic?"
"Well Tails, what I do is push all negative thoughts away and think of positive thoughts. If you think of negative thoughts than that activates the negative side of the emeralds and you don't want that." Sonic replied.
Tails nodded his head. "Positive thoughts, got it."
Tails closed his eyes and pushed all negative thoughts away and began thinking of good thoughts, like the day he met Sonic and his whole life changed for the better.
The 7 Super Emeralds began to glow before floating up. They began circling around Tails faster and faster. Tails could feel the power of the emeralds flowing through him. A blinding flash occurred before dying down. When the light was completely gone Tails was now in his own super form.
The only difference with Tails' super form is that a golden aura surrounded him along with 4 flickies. Tails whose eyes were closed opened them and looked himself over before smiling.
"I did it Sonic! I actually have a super form!" Tails declared flying around in circles.
Sonic grinned. "That's great little bro! Hey can you come over here a second?"
Tails flew over to Sonic and landed in front of him. "What is it big bro?"
"Hold your arms out in front of you and take my hands." Sonic said as he held his arms out at Tails.
Tails did as he was told and held out his arms and grabbed Sonic's hands.
Sonic closed his eyes and began focusing as some of the power from Super Tails transferred into him. Sonic began glowing and he transformed into Hyper Sonic.
Hyper Sonic smiled. "Hey super little bro, want to go flying together? I promise not to go too fast that you fall behind."
Super Tails grinned. "You betcha hyper big brother!" with that said, Super Tails and Hyper Sonic flew away from Angel Island .
Knuckles was watching the whole thing and couldn't help but to smile. "I knew Tails could do it. I just hope that the two of them get back before the emeralds powers wear off." he thought to himself.