There was another wedding happening in the castle in Canterlot. After Shining Armor and Princess Cadance, Princess Twilight and Book Worm were next. Everypony was there: the mane six and their coltfriends. Well, Rainbow and Con were married now. Twilight and Book Worm's parents were also there, along with Shining Armor, Cadance, Princess Luna, Princess Celestia, and others.

Everypony was talking about the wedding of Princess Twilight Sparkle. There hadn't been so much commotion about a wedding since Princess Cadance's wedding. Everypony was wearing their best outfits. Shining Armor was crying and being comforted by Cadance. A pony looked at them.

"It's ok, he always cries at weddings," Cadance said, a little embarrassed.

"I'm not crying," Shining Armor said, stiffling his tears, "It's liquid pride." Everypony quieted as 'Here Comes The Bride' sounded through the room, and Twilight walked down the isle. She was wearing a light purple and blue dress with a scar pattern, dark blue shoes, and she was wearing her crown. The flower filly was Book Worm's little sister, Lily Flower.

"Fillies and gentlecolts," Princess Celestia said, "We are here today to join these two ponies in marrage. They've been through so much together already. Think of the other adventures they'll have together."

Celestia talked for a little while before coming to the vows.

"I vow to comfort you whenever something is wrong," Book Worm said.

"I vow to listen to you when you talk about a new book that you read," Twilight said.

After the vows, Celestia got to the last bit.

"Do you, Princess Twilight Sparkle, take Book Worm to be your husband?" Celestia asked.

"I do," Twilight said.

"And do you, Book Worm, take Princess Twilight Sparkle to be your wife?" Celestia asked.

"I do," Book Worm smiled.

"And with that, I pronounce you mare and stallion," Celestia said, turning to Spike, "The rings?" Celestia took the two rings and set one on each of the two's horns, "You may kiss the bride."

Twilight and Book Worm kissed and everypony cheered loudly at the marrage of a princess. Pinkie started the music, and she and Butter sung 'Love is in Bloom' since Twilight was the one getting married.

"Oh, I'm so proud of you," Twilight's mom gave Twilight a big hug.

"Me too, Twily," Shining Armor said, tears flowing down his cheeks.

"Shining Armor, are you-?" Shining Armor cut Twilight off.

"No, i-it's liquid pride," Shining Armor smiled.

"I can't believe my little colt is married to a princess!" Book Worm's mom gasped happily.

"Yeah, but that's not why I married her," Book Worm smiled, nuzzling Twilight's cheek. Book Worm had grown more confident since getting a fillyfriend, and it showed a lot.

"Congrats, big brother!" Lily looked up at Book Worm. Lily was only about four. She turned to Twilight, "So are we related?"

"Yes," Twilight laughed, "I'm your sister-in-law." Lily gasped and started to bounce around.

"I'M RELATED TO A PRINCESS!" She yelled happily, bouncing through the room.

The older ponies laughed lightly at the antics of the foals. Sweetie Belle, Apple Bloom, and Scootaloo were running around and laughing and Lily asked to play with them.

After the wedding, Twilight and Book Worm rode off in a chariot. Twilight tossed the bouquet into the crowd and it was caught by somepony.

They flew off and everypony waved goodbye, calling out congratulations as they watched the newlyweds ride off.

"This was almost good as my brother's wedding," Twilight smiled as she and Book Worm watched the clouds as the sky turned pink.

"I think it was even better," Book Worm said.

"But you weren't even there," Twilight said.

"Still, it had to be better," Book Worm smiled, "Because I got married to you."

"Awww," Twilight beamed and she and Book Worm nuzzled.