It all started, after the defeat of great Tirek. Spike started to notice some changes on his body. Some strange marks were showing up around his body, this kind of phenomenon was worrying Spike. He couldn't hide it from anypony, especially from Twilight, since they 'live' together she noticed those strange marks around his body.
Twilight tried to search in her books about some Dragons anatomy, but since dragons are mystical creatures. Books telling about this topic were rare or they don't even exist.
"I'm sorry, Spike." Twilight said. "But, there's no book around here that could explain this phenomenon."
"Do you think this could be serious?" He asked. "I mean, this could be happening due to my growing. Don't you think?"
"Maybe, I don't know." She answered. "Write a letter to Princess Celestia, I need to know if she knows about this 'thingy'".
With her letter sent, she waited for her response.
"Hmm. I'm felling." He said. Suddenly, he breathed fire and a piece of paper comes up from it.
Twilight walked toward the paper, grabbing it and reads it.
' Dear Twilight Sparkle,
This kind of phenomenon is natural to dragons. It means that Spike is achieving his 'true dragon form'. I had this book in my secret library, it might be useful.
Princess Celestia'
She grabbed the book and started to read it.
"Spike, I'll need some time to read this book" she said. "Don't you mind to go out for a while?"
He nodded and left her alone in her room.
Spike had growed up a little, now he no longer walks in two legs, he learned how to walk with his four legs.
Twilight was alone in her room.
"Dragons Anatomy, for*cough, cough* ponies" she reads the title
Dragons will start to develop, their maturity when brown spots were appearing around their bodies(Color may differ from dragon to dragon, but when these strange spots show up this means their reaching their maturity.).
"Alright. That's what I was thinking." she said.
At this point, they started to come up with ideas of leaving their home lands(If they're not raised by a dragon mother.). They often choose the dragon migration to leave their home land.
"What. Spike. Leaving Ponyville. I mean, he loves this place, right." she said
She passed some pages forward until she saws a topic about dragon migration.
Dragons will not leave their home lands, if they choose a partner. It could be dragon or not, as long they stay together, they don't leave their partner. Dragon's loyalty to their partners allows them to not leave them. So... If you want that your dragon stays in his home land, he has to gain trust in one of his/her partner. But since we, ponies, are their preys we never tried that kind of affection. So it's better to let them go even if that causes too much pain.
"He loves Rarity, right?" she asked to herself. "I mean, i don't know if she loves him. I don't want him to go. We growed up together. It will be very difficult for both of us." she said "But, Spike hunting us. Nah, he loves us... I think."
As Spike walked through the crowd, he started to feel something strange inside him.
"What's happening?" Spike stopped, while he grabbed his front leg. "I'm feeling dizzy. No.....".
With a 'tud', his body laid on the ground, that made him cath the attention of the crowd walking nearby.
Twilight heard a violent knocked on her door and her doorbell was ringing like crazy. She rushed to complain, but when she opened her door...
"That's not for..." she started. As she watched her friends looking at her with a sad face "What happen? Why are you like this?" she asked.
"Spike, is on the hospital. We don't know what's going on with him." Rarity said. "I'm worried about him. Please Twilight come with us. We need to see him."
"What happen?" Twilight asked
"We don't know. The nurse call us when Spike arrived at the hospital." Applejack said.
"Let's go then." Twilight said.
In the hospital, Spike were heading out. When he saw his friends run towards the entrance, the sight of his new form made them stop, as they looked over his new body.
"What? Do I look so bad?" Spike asked.
"See for yourself." Rarity used her magic to conjure her magic mirror, placing it near him.
"WOW!!" Spike said.
Spike looked different, he's now a medium size dragon, his tail became larger instead of a round end it becomes a round pointy end, as he looked over his back he saw two large majestic wings, he's a matured dragon now.
"Cool. And I was worried that, this could be serious. I was just changing." he said
The looks of his friends faces told him everything.
"You look majestic, look at you." Rarity said. "Who would knew that, baby dragon would become this?" she pointed at him.
He blushed.
"Come on. That's nothing, I still be the same Spike, after all." He said.
He looked over his friends, he could feel that he's taller than them.
"And now, who's the little one?" he smiled, as he embraced them.
In Twilight Castle.
He stepped in, being careful for not destroy anything as he walked across the rooms.
"Say, Twilight." he started. "I know, I'm fully grown now. Don't you think I need a bigger place for myself."
"Yes, I think you need it" she said. 'Did I told him?'. "Spike, did you love Ponyville, i mean..."
"Of course, why are you asking?" he asked
"Just for personal reasons." she said
"Ok." he said "Besides, Ponyville is my home. There's nothing that will change that."
"Look, Spike. About that book I read earlier." she said "I read that dragons leave their home lands when their reach maturity,... I don't want you to go away."
"Look, Twilight I love living here." he said "And besides even if I want to move out, Rarity won't allow me."
"Why?" she asked
"She loves me. Did you see how she treated me and how she looked at me when I get out of the hospital?" he said
Twilight smiled. "Yes, Spike I saw how she treated you.". 'I hope that, Rarity...'.
"Twilight, can I ask you something?"
Twilight nodded.
"I'm feeling strange. It's something in my head telling me things like...I don't know how to explain it."
"Forget about this alright." she said "Here. Some sheets for you." she gave him 'sheets for larger ponies'.
"Thanks."
A few weeks later...
Spike helped Ponyville ponies in their chores and problems, like helping Pinkie Pie with her deliveries or helping Applejack with the applebucking season. Twilight somehow, notice that he didn't care so much for his duties on the castle. Suddenly the front door opens and Spike enters the main corridor. He then entered the main room and greeted Twilight.
"Hi, Twilight. How are you today?" he asked
"Where were you?" she asked
"Helping Fluttershy with her animals. Why?"
"Did you forget, where you should be?" she asked
"What?" he asks confused.
"You're supposed to help me reorganizing the castle. That's why I..." she said
"WHAT? I'm not a..." he said "Look, Twilight I know you love my company all long these years, but I've other friends that need my help too."He then realized what Twilight was trying to mention" Am I a slave to you, is that what you're saying?"
"No, you're my assistant. Not a slave." she said
"Well, it looks like you're treating me like one. You know what? Applejack said if I don't had a big place to sleep that I could use her barn. I'm sorry, Twilight but I'm tired of you. I was doing this all over this years, because I liked being with you. But since you're treating like that. I'll sleep in there from now on." he said as he slammed the main door that made the entire castle shake. 'Stupid pony. And I thought that she was a decent friend. Gah, just forget about her.' Spike thought to himself.
With that Twilight rushed to her room, with tears on her eyes.'Why did I said that? Now he probably hates me. I fear that...'
Spike arrived at Sweet Apple Acres. When he heard the CMC saying that were Timber wolfs attacking some ponies in the Everfree Forest. Spike rushed with the CMC into Everfree Forest. And was true a pack of timber wolfs were running after some ponies, Spike used his fire to make them flee, unsuccessfully, they just continued pursuing the ponies. Spike got tired of this and rushed to their help, being a tall as he was the Timber Wolfs were intimidated and run away. As he led the ponies out of the Everfree Forest, something on Spike changed.
'What's happening? I'm feeling HUNGRY. Food.' he said to himself as he looked over the ponies that were congratulating him for what he did.
"MMMMEEEEAAATTT" he yelled.
The ponies stepped away when they noticed that something in Spike changed.
"Spike are you, ok?" Applebloom asked.
"RUN. I'm not feeling ok. RUN AWAY." Spike said. "MMMMEEEEAAATTT! FFFFOOOODDDD! Spike is HUNGRY."
With that Spike pounced on the ponies, but due to his size, the ponies could escape his attack.
"NO FOOD RUN FROM SPIKE." He said as he got up as quickly as he could and chased after the ponies.
The screams of those ponies made SweetApple Acres residents woke up. Applejack got up off her bed and opened her bedroom window to see what's going on.
"What's this yelling about, Applebloom? It's almost midnight." Applejack said
"Spike, it's Spike. He's after us." Applebloom said while trying to recover her normal breathing. "HE CHANGED"
"Of course he changed, you just notice now." Applejack said.
"No, not that he's..." Applebloom tried to say but was interrupted with a furious roar coming from back of them.
"FOOD. SPIKE WANTS MEAT." Spike roared
"See, let us in." Applebloom rushed to her house.
Her friends and the other ponies rushed to Applejack's bedroom.
"What happened to him?" Applejack asked
"We don't know" she said "He saved these ponies from those Timber Wolfs." she said while pointing to the saved ponies."But that's not the point, Spike changed. You heard him. MEAT, right?" she said
"Applebloom. Please stay here. He will probably won't find you here I need to talk with Twilight about this."
Applejack rushed to Twilight Castle, she entered her Castle and searched for her.
"Twilight, are you here?" she asked "TWILIGHT!!"
She heard some cries coming from upstairs. She followed the source of the cries. At the top of the stairs she noticed those cries were coming from Twilight's bedroom. She then trotted and slowly open the door.
"Hmm, Twilight. Are you in here?" She asked while noticing that she wasn't ok "What happen? Why are you crying?"
"I'm a dumb... dumb... I was mad at Spike." she said while she tried to stop crying. "I'm..."
"Look, Twilight. What happen between you and Spike for now it doesn't matter. Spike is acting strange. He was chasing after my sister and her friends." Applejack said.
"What?" she asked "That's impossible, Spike would never do that."
"Believe me, he was different. I think that..."
"He is in his predatory behavior." she said
"What? He's a PREDATOR." she said "I thought you said that dragons were pony friendly."
"What I said and what is a truth, it's completely different. Spike is becoming a predator. He will find anything to eat, pony or not." she explained.
"There's a way to bring him back. I mean it's still being Spike inside, right." she said
"I don't know AJ. The book doesn't come up that topic." Twilight said.
"Could we try it? Maybe Rarity could bring him back like she did when he was that giant dragon. Remember."
"I'll call them here using the cutie map. Let's head downstairs then."
They trotted in the direction of the room where the cutie map was and Twilight used her magic to call her friends.
"Now we just wait."
A few moments later. All of her friends were reunited on the cutie map. When Twilight started to talk.
"Well, I apologize for calling you so late on the night, but the problem is that Spike turned to be a predator. And I'm here to ask to help me to get him back." Twilight said
"A predator!?" They said
"How he became a predator?" Rainbow said
"It's a normal behavior, for creatures that have fangs." Fluttershy said "Sorry Twilight but, I read that, well raised dragons didn't became these kind of beasts. Did you did something to him, recently?"
"Well, we discussed." Twilight said
"That's not a reason for them to become like these. Did you said something else?" Fluttershy continued
"I said that... I wanted him to reorganized the castle instead of helping..."
"US!?" They said
"Yes" Twilight said, while she turn her gaze to the ground "I'm sorry, I was jealous alright. Seeing him, like that helping others instead of me. Me, the Princess of Friendship, feeling jealous."
"Come on, Twilight. Everyone feel jealous at least one time in their life." Rarity said
Twilight turned her gaze up again so she was facing her friends again.
"Thanks. Well now the point is. We need to bring Spike back. We need to bring him back to his normal behavior, before he do some damage."
"And how we could do that?" Applejack asked
"He needs to be recalled to reason like Rarity did when he become that giant dragon." Twilight said "What do you say Rarity, could you bring him back?" she asked
"You mean go after him, while he's in this new behavior. I hate to say but... NO. I'm sorry but I can't risk myself."
"Anyone?" Twilight asked
She waited for answers but she didn't get them. Since nopony volunteered, she decides to go by herself.
"Well, since nopony goes. I will go." Twilight said
Her friends looked at her and nodded, except Fluttershy she tried to warn her.
"Wait, Twilight. Spike's behavior is dangerous, especially to you. You caused this remember, this could be a risky task. Twilight think about it." Fluttershy said
"This all happen because of me, if Spike want something. That will be me." She said, while she leaves the Cutie map room and used her teleportation spell to got near Spike's position.
She felt Spike aura inside of a cave. She gulped and stepped in.
Then she heard a furious roar that made the whole cave shake, causing a giant rock to block her only source of escape. She then saw Spike, slowly walking towards her. She tried to use her magic to protect herself, but Spike was more agile than her. His tail hitted Twilight body that send her against the wall and she felt her horn lose sensibility, she tried to cast some spell but failed. She was there defenceless, without her magic she couldn't do anything.
"Spike, I'm sorry for what I said." She said while fearing what he could try to do.
That speech didn't make him stop. He continues to slowly trot towards her until she grabbed her and pounded her against the wall.
"SPIKE. WANTS. FOOD." he said "I'M HUNGRY. SPIKE'S HUNGRY."
He used his claws to press against Twilight's flesh, that made her starting bleeding.
"Spike, stop you hurting me." She tried to said but was useless.
"SPIKE NEEDS MEAT." he said "SPIKE WANTS ALICORN MEAT."
She could feel it, she was losing blood, too much blood. She could feel that her time was coming to an end.
"Spike, please look what you're doing to me." she was crying now, while she tried to call him to reason trying to make him remember. "I'm sorry if I hurt you, it wasn't my intention"
"SPIKE WILL ENJOY THIS MEAL." he said while he started to lick his lips and showed her his fangs.
She looked at his fangs, those sharp, deadly fangs could pierce even Manticore flesh.
"I know what I did. I'm sorry. I hope you could forgive me. Like I forgave you."she said, while she lost her last hope.
When she felt his fangs on her neck she knew that she couldn't do it. He started to pressing it down (closing his mouth), until she felt his fangs piercing through her skin. She closed her eyes, while her tears ran down her cheeks.
Her last hope was...
"I was jealous, alright. I was jealous, because I saw how majestic you became. I didn't want you to be with anypony worth of your majestic look. Instead of me. I'm sorry Spike. I should never had discussed with you like that. It's useless now, you probably hate me for that." she said, while she had tears in her eyes.
Suddenly that pressure on her neck was stopping. She felt him leave her neck. He looked at her and smiled at her.
"Finally, took you long enough." Spike said.
She looked at him confused for what she heard.
"You dumb dragon. Why would you do this?"
"Oh come on, Twilight. You know better than anypony that well-treated dragons would never become predators. I mean not like I was acting."
"You hurt me." she said
He looked over her body seeing that what she said was true.
"I'm sorry Twilight, but I want you to say to me that you're jealous of me. There's no need to hide it." Spike said "I saw how happy you were when I came out of the hospital. I saw the bright of your eyes. That book, the princess gave you. I read it. It had some pages with missing information. You wanted to see what a relationship between a dragon and a pony was, right? That's why you wanted me to be all-time on the castle, right?" he asked
She blushed and covered her face with her wings.
"How did you know?" she asked
"Come on Twilight. We lived together for all this years. You couldn't hide from me that easily. And besides... Rarity should come to me but she didn't." Spike said
"She said she wouldn't risk her life for this."
"Really? I knew it." Spike said
"What you mean?"
"She was using me." Spike said "She probably loves that fancy pony, that recently come to Ponyville. Well there's another pony that would be interested, right."
She clapped her hooves and said
"Me---" She tried to say
"Applejack." Spike said
"What?" she said
He laughs at her frustration.
"Pff. Come on Twilight. You know that I'm joking, right?" Spike said "And besides I'm a majestic dragon. Applejack is a good option, but an alicorn is the best choice don't you think. They need a strong male that keep them protected from everything. And what's better than a dragon." he said
He dropped Twilight on the ground and used his front legs to push the giant rock aside so they could get out of the cave.
"Spike, I'm sorry. I didn't what to yell at you." she said.
"It's ok. You redeemed yourself."
Back at the friendship castle.
With Spike backing to normal behavior, Pinkie Pie made a huge party 'as always', Rarity confessed to Spike that she really loved him but as she said there's a stallion on the town that is catching her look, she apologized to him and left the castle.
As the night coming up, Twilight was on her Library finishing the book 'Dragons Anatomy'.
Dragon and ponies could love each other, as long the dragon feels that the pony is his/her trusted partner. Dragons and ponies 'sexual relations results' are unknown since nopony tried to experience that. I Princess Twilight Sparkle, Princess of friendship. Will be the first pony to try to experience those results and as soon as I got the result I will finish this book.
She closed her book and headed back to her bedroom. When she opened her door she saw Spike in a strange position and he said
"You can't hide it, Twilight. I can help with your research if you want?"
She blushed hardly and head towards Spike. She climbed up to her bed. And...
"I'll be happy if you help me. Don't you mind."
He nodded.
They embraced each other and laid together.
"You're ready?" he asked
She nodded.
'You probably know how this ends, right.'
The End