After a rather physical encounter with Twilight, the two managed to take a quick nap. However their previous encounter had let them arrive in the basement of the library instead of Twilight's bed. This was due to the fact that Spike was making several errands around Ponyville and would be coming back to the library to drop off items that he was sent to get during the day.

Twilight had awoke shortly before Charles and decided to make some headway on her search for what has going on with him. So she managed to hook him up to several machines while he was still asleep, taking readings left and right while also experimenting with how much magic he was absorbing and at what rate when a spell was cast on him. During her research though she failed to see that his eyes were open and he was smiling at her as she wrote onto several scrolls.

"Having fun?" He spoke out causing her to jump and gasp as Charles suddenly derailed her train of thought.

"Darn it Charlie, Don't do that!" She chuckled setting down her scrolls and books coming over to sit next to him.

"You know, I never expected to have a mare friend that was so curious about me, that she would end up making me here science experiment." He smirked, cocking a brow while looking at the ever blushing Twilight at his side.

"Quit it, I'm just trying to figure out whats going on with your body and why you turned human again." She sighed rolling her eyes.

"Well, I can certainly tell you what's going on with my body." He chuckled.

"REALLY!? What is it?" Twilight squeed with glee wanting to know.

"It craves a pony called TWILIGHT!" He laughed as he wrapped his arms around her pulling her to him. Twilight let out a giggle pressing a hoof to his face playfully trying to push him away.

"You've already had your dose of me today, now its time to study and figure out what in Equestria made you turn back into a human." She smirked as Charles let her go.

"Awwwww, spoilsport." He groaned flopping back onto the table he was already on.

"I did manage to get a few good readings while you were asleep, But it still doesn't tell me how or why you are absorbing magic and chaos energy. It seems very strange." She said as she levitated her notes up and began to read them again.

"You think there is a way we could speed this up? I'd like to return to my pony form as soon as possible. Not being able to fly or use magic is really getting to me." He sighed.

"I know, and I'm sorry. When I caught a magical cold before, I wasn't able to use magic for almost a week. It gave me a very good perspective and experience in how an earth pony lives. Having to do everything by hoof and mouth without magic was horrible." She sighed in frustration.

"It's fine. Even if I don't ever return to my pony form I still have you, Rarity, and Celestia with my foal." He stopped for a moment thinking. "Twilight, how long does it normally take for a foal to arrive once a pony gets pregnant?"

Twilight stopped, giving him a peculiar look before answering. "Around 11 months, why?" She spoke only to see him face palm giving a loud sigh.

"Celestia is due in roughly a few weeks. I can't believe how much time has passed since my arrival last year. It has literally been almost a full year. Wow, I'm just speechless." He chuckled shaking his head in disbelief.

"True, but think of all that you have done and gained in that time as well. You have saved many ponies lives, saved the entire planet, managed to knock up the princess, gained two lovers and several nieces, befriended a longtime enemy and turned him from evil to good, in so many words." She waved a hoof metaphorically. "Then returned to your human form in some unknown way. I must say, your adventures are far and not very few, with each passing day you mmmPH!" She stopped as he leaned over kissing her. He pulled back giving her a smirk seeing her blush a bright red.

"You talk to much." He chuckled. Twilight just smirked at him wrapping her hooves around his neck.

"Only so you will learn something new smart flank." She gave him a wink before kissing him again.

*beep beep beep beep beep beep*

Their attentions were caught by a loud beeping from one of the machines attached to Charles. Twilight pulled away from him to check on why it was beeping but it suddenly stopped.

"Huh, I wonder why it did that?" Twilight spoke as she trotted back to Charles wrapping her hooves around his neck again. "Now, where were we..... *beep beep beep beep beep beep* OH COME ON!" She threw her hooves up in frustration only to elicit a laugh from Charles as she trotted back over to the machine only to have it stop before she made it to it. She let out an annoyed growl before it hit her.

"Come over here, I want to check something." Twilight said as she stood next to the machine that was beeping before. Charles got up ans stood next to her. She pulled a hoof up and pressed it to Charles, after a few seconds the machine started to go off as she watched the numbers on it rise quickly. After a few seconds she removed her hoof looking at the number humming while rubbing her chin in thought.

"Twi?" Charles began but stopped as she raised a hoof to silence him.

"It seems that your body is absorbing magic from any and all things that can use or hold magic within them. Your current level of magic is starting to increase ever so slowly and doesn't look as if it will stop anytime soon." She said as she lowered her hoof.

"What are you talking about? Magical level?" He spoke in confusion.

"It means the level and amount of magic that you can use in total and what you can hold when you are fully charged."

"Fully charged? You mean there is a limit to magic one being can hold?" He spoke out slightly shocked.

"Yes, I thought you were aware of that." She spoke in surprise.

"No, I knew I could use magic, but I didn't know I had a limit of how much could be held within me." He sighed scratching his head in thought.

"Well, you can increase your overall magic tank by constantly using magic. You see, when you use magic, your body will be able to carry more at one time and also pull in magic more quickly so that..............." She trailed off as realization hit her and she bolted upstairs leaving Charles in a stupor as to what had just happened. After a few moments he began pulling the wires off of him and ran upstairs right behind Twilight.

"Twi? Whatsup? Do you know whats wrong with me?" He spoke out as he rushed through the door to the basement into the lobby of the library to see Twilight looking through several books at once.

"AHA! Here it is!" She spoke bringing the book over to her desk, Charles hot on her heels as he took a seat next to her.

"Well?" He spoke in annoyance.

"Yes, this is what is happening to you alright." She smiled as she pointed to a paragraph in the book as she began to read.

"A pony or creature can contain a finite amount of magic and pulls magic from the world and other ponies around them once there limit has reached a certain point. At some points in time when the pony has aged and continuously uses magic even for everyday tasks. Their bodies may shut down for a given amount of time so that they can pull in a large amount of magic quickly. A pony's body deteriorates while under the constant strain of using magic. Once the body has reached a certain point it will essentially shut down, cutting off all magic going in or out of said individual. However, in rare cases it has been shown that the body will heal itself from the magic consumption by not only shutting down the gateway for usage, but leaving the gateway for accumulating magic open. This was one case having dealt with Starswirl the Bearded during his thrice yearly meditation cycles in which he locked himself away from all other life for exactly two weeks. This information was divulged just before Starswirl disappeared mysteriously, never to be seen again.

Charles sat there slack jawed, completely stunned as to what he had just heard.

"You see, now you won't have to worry about staying human forever. You will return to your pony form in time." Twilight smiled.

Charles fell back onto a pile of books giving a contented sigh, a smile across his face, arms spread out to his sides.

"Thank God, I seriously would freak if I didn't get to use magic again." He smirked turning his head to look at Twilight as she to a seat next to him, laying at his side and nuzzling his chest affectionately. "That among other things." He chuckled catching her attention.

"Really? What would that 'other thing' be exactly?" She chuckled back.

"Well......." He started. "Do you really want to know?" He couldn't help but crack a smile at this point only to cause Twilight to roll her eyes, knowing that something awful was about to be said.

"Yes, just tell me already." She face hoofed.

"I'm not sure if you realize it or not, but you're a screamer." He chuckled only to cause Twilight to cock a brow in question.
"Oh my God you are just to innocent at times." He rolled his eyes as he began to explain. "A screamer is a person, or in this case, a pony that while making love, or just rutting either moans very loudly or screams out in a fit of passion. You usually scream after I've been working on you for a few minutes. I have even had to cast a few muffle spells around the place we were in at the time to keep every pony in town from hearing you." He started to chuckle but burst out laughing as he noticed how red Twilight had become.

"I DO NOT SCREAM!" She defended herself only to stop as he began again.

"Well not this last time you didn't. Apparently you only do that when you're bronco busting." He winked playfully.

"What?" She asked still not catching the hint only to make Charles deadpan.

"As a human my dick isn't as big as when it is when I'm an Alicorn." He sighed but started to laugh again as Twilight covered her face in sheer shock from hearing that. Charles continued laughing for another minute or two while hugging Twilight who only groaned in embarrassment.

After their short conversation and finding out what was wrong with Charles. They wrote a letter to the princess. After a short time they received a reply thanking them for the wonderful news, along with sharing some information about when the baby was due. The foal would arrive in only a couple weeks. Although things at this point were a little chaotic. Light still shown through even the darkest hour.