9 months later

It has been nine months after Thorax had brought Twilight back home to her family after intervening her from escaping back to Canterlot on her own to raise his baby by herself, the family were so happy to have their daughter back, and Twilight was so happy to be back with her parents and big brother, the sight has made Thorax smile warmly too. However, he did nearly got charged and arrested by the police but thankfully, Twilight was able to stop the officer along with her father saying that they forgive him. In the end, the officer happily accepted their statements and dismissed the charges against Thorax.

Twilight's family have also decided to ask Thorax to be apart of their family and the changeling happily accepted it which made Twilight extemely contended due to her going to live with her husband forever. However, they did made some decisions with each other by saying that by every month, Thorax and Twilight would move to each of their houses, this would also be a chance for Twilight to meet Thorax's parents. In the end, they reached a compromise.

Since the day Twilight met Thoraxas parents, they were quite strict of her for making their son drunk as well as forcing him to be a father to their foal, but Thorax managed to calm them down and told them that it was his fault too, although he found nothing to substantiate his statement to them but, his parents accepted Twilight at the end which made him very relieved.

Since the past months, Thorax has been doing nothing but buy baby equipments from stores in Ponyville Shopping Centre, as well as providing succour to Twilight by helping her walk, feeding her highly nutritious foods what were good for both her and their baby, educate her on how to remain composed and many more. He was like a guardian to her. In addition to that, Thorax protected Twilight when they had some walks in Ponyville park by shielding her with his wings to avoid attention from the community. And she was very grateful for his doing.

In Twilight Sparkle's house, Twilight was seen sitting on the couch while reading a book with her husband Thorax.

"Science is amazing eh Twinkle's?" Thorax asked nuzzling his wife.

"Indeed it is Thory." Twilight said nuzzling her husband back.

"Here are some drinks." Velvet said coming in with a tray with two glasses of water for the couple. She placed it onto the table in front of them.

"Thank you miss Velvet." Said Thorax with a smile.

Twilight looked at the glasses of water with a pleasant smile on her muzzle. She then began to reach out for one of them with her right hoof. But suddenly, she felt an excruciating pain in her belly.

"Ahhh!" Twilight said as she placed her hooves on her belly in pain.

"Twilight! Are you okay?" Thorax asked with a concerned expression. He looked down and saw that her water is broke.

"Oh no, prelabor rupture of membranes." Thorax said with a shocked expression.

"What?" Shining asked with a concerned expression along with his father and mother.

"No time for a scientific statement." Thorax told them as he stood up "We have to get Twilight to the hospital." He said.

After that, Thorax lifted Twilight up and placed her on his back. Then, he ran to the front door of the house. Once he got to it, he pulled the door open and exited it and began making his way to Ponyville hospital as quickly as he could.

"Hey! Wait for us Thorax!" Shining exclaimed as he, his father, and mother all exited the house and began to catch up with Thorax as fast as they could.

Ponyville hospital

Thorax has successfully made it to Ponyville hospital in just six minutes, and his times at gyms have made his running process very auspicious.

When he was in the hospital, he lowered Twilight on the floor and began to help her walk her way into the foyer in order to look for a doctor to help him.

Luckily, a female changeling nurse noticed them and she began to help Twilight walk her way to a stallion doctor. When the doctor noticed the lavender unicorn's condition, he helped put her on a stretcher along with Thorax. After that, he and the changeling nurse began to pull her to the E.R with Thorax holding Twilight's right hoof.

"You'll stay with me right Thorax?" Twilight asked with a perturbed expression.

"I will Twilight, I will always stay by your side, I will never abandon you." Thorax replied with an assuring nod.

"Thank you."

Once the doctor and the nurse have pulled Twilight into the E.R, the nurse closed the door and the doctor positioned himself until he was staring at her member.

"Okay Twilight Sparkle, you're now going to give birth, so you need to push as hard as you can in order for your baby to come out understood?" The doctor asked her, and Twilight responded with a quick nod.

"Okay on three. One... two... three... push!"

"HNNNNGGGGGG!" Twilight groaned a she began to push while gripping onto her husband's right hoof for some leverage.

Although Thorax was hurting a little from the pressure his wife is giving onto his hoof but, he managed to endure it, he must do his best to help Twilight through her distressing situation.

"Are you okay Twilight?" Thorax asked with a worried expression.

Twilight ceased her pushing and looked up at her husband with an assuring expression.

"I-I'm alright, just a bit tired." Twilight said in breaths. She then took a deep breath and pushed again while squeezing onto her husband's hoof once more, this times it was more excruciating. "THORAX! I'M GOING TO KICK YOU SQUARE BETWEEN YOUR HOOVES AFTER THIS!!!" She screamed furiously.

Thorax was petrified by this, although it was mostly her fault for getting herself into this situation but, doesn't she realize that he is trying to help her calm down? But, this was quite normal during pregnancy with ponies and changelings wives being angry at their husbands for making them go through this excruciating moment from what he had learned from his mother.

"Come on Twilight, just one more push! I can see the head!" The doctor told her.

"You can do this Twilight." Thorax encouraged her.

Twilight then took another deep breath and pushed with all of her might.

"HNNNNNNNNNGGGGGGGGGGGGG!!!" Twilight groaned while squeezing her husband's hoof. A brief second later, a splat noise was heard.

*SPLAT!*

"Waa! Waa! Waa! Waa!"

The baby was finally out! The doctor cut the umbilical cord that was responsible with supplying nutrients and blood to the baby with a scissor and it was free. The doctor then checked the gender of the hybrid baby and saw that it was a male.

"Congratulations Thorax and Twilight Sparkle, you two have a colt." The doctor said with a smile.

The doctor then brought the baby up to Twilight and she let out a warm smile at the sight of her son.

"Awww." Twilight cooed as she grabbed her son. "Hello there, I'm your mommy." She said with a smile.

"And I'm your daddy." Thorax greeted as he gently stroked his son's head.

Fifteen minutes later

The nurse has brought Twilight to her room while the doctor went to wash the baby. During that time, her parents and big brother have finally arrived and it seems as if they have missed a lot.

"Twilight, are you okay?" Velvet asked with a concerned expression.

"I'm okay mom, Thorax helped me through the situation." She told her.

"Now that's what I call a loyal husband." Shining said as he patted on Throax's shoulder.

"Thank you Shining."

Twilight looked to her right to an incubator where her son was currently snuggling in comfortably. He is dark purple coloured, he has wings like Thorax, he has a unicorn horn, his mane is as beautiful as her's, and he has hooves that were identical as her's.

"I can't believe that this is happening to us right now Thorax."

"Me too Twilight, me too." Thorax said nuzzling his wife affectionately.

"So, what did you two name him?" Nightlight asked.

Thorax and Twilight both stared at each other for a moment and looked back at the three unicorns.

"Alistair." Thorax and Twilight both said in unison.

Author's Note

Well, here we have it everyone, my new Twirax story has been accomplished. I had a lot of fun writing it! And I certainly hope that you all had a wonderful time reading it! All of you are amazing!

Also, I do not own the character Alistair, he belongs to Percy-McMurphy on Deviantart.
Here's the link to it
https://www.deviantart.com/percy-mcmurphy/art/TwiRax-Nextgen-Alistair-784650921