Mister Seapony (aka I want your butt babies)

Soarin goes back to the farm house quickly. He bursts through the front door. "BRAEBURN!! BRAEBURN!!" Soarin yells for his husband in excitement. Braeburn trots downstairs quickly as if it were an emergency. "Huh?! What's goin' on?!" Brae questions, terrified. He goes up to him quickly.
"Someone gave me an awesome idea!" Soarin cheers as he runs over and hugs Braeburn tightly. "We have to go to Ponyville though!" he tells the yellow stallion. Brae looks confused and just stares at him.
"What in tarnation are ya talk'n about?" Braeburn asks him with a bit of confusion. Soarin takes his hoof. "You have to listen to me, Babe! Twilight probably has a spell to help us.!" he laughs in happiness.
"Woah! Woah! Woah! We can't just ask the princess to give us a kid!" Braeburn backs up in shock.
"Well, we can always try!" Soarin tries to persuade him. "Trust me. It will be okay, Brae. I know what I'm doing.." he squeezes his hoof and smiles at him.
Braeburn looks at him and sighs, "Okay, we can try but if we get kicked out, it's your fault!" Soarin laughs, "It's a deal, Babe."
Soarin rushes him back to the train station and they get on the train again but this time to Ponyville. They sit in one of the booths. "I swear if this gets weird, I am going to.. Actually I don't know what I'm going to do," Braeburn laughs. "Calm down. I'm pretty sure it won't be that bad," Soarin chuckles. He kisses the tells stallion.

They finally get to Ponyville and walk through the town. They spot the crystal, tree-like castle and trot over to the building. "I really can't believe we are doing this.!" Braeburn says to Soarin. "Hey! Just chill. I'll take over on what to say," Soarin knocks on the front door.
The doors open a bit and the first thing they see is a small purple dragon, holding a stack of books. "Hello?" Spike asks in confusion. "We would like to speak to the princess, please," Soarin smiles. "She's a bit busy but I'll let you in. Follow me," he leads them to Twilight.
"Oh! Hello, Soarin and Braeburn! How can I help you?" Twilight asks as she puts a book mark in the story she was reading. "Braeburn and I have been trying to have a kid," Soarin answers and Brae slaps his hoof to his face in embarrassment. Twilight stares at him. "Just a minute. I will be back!" she tells them and goes to her book shelves. She looks through it until she found something.
She takes the book down and looks through the book. "Huh.. There isn't a spell or anything for it but there is a procedure for it," Twilight tells him. They look at themselves in confusion. "Who's home most of the time?" she asks and Brae raises his hoof.
Twilight starts to grab strange ingredients and put it in a pot over the fire. A few minutes later, she takes a large spoon and scoops out a strange, slimy sack. The stallions become more disturbed and step back. She sets it on a table and seriously asks, "May I ask for you two to do me a favor?" She hands them cups. They take them and go to a bathroom.
They come back with their filled cups and Twilight takes them with her magic. She starts to put Soarin's into the sack first. She uses Braeburn's and puts it under a microscope. She does some work on the cells and turns them into white, odd shaped egg cells. She takes them and puts it all in the sack with Soarin's juice. They look at each other as she turns around, closing the sack so it doesn't break open.

"There! This should do the trick!" she says, "Now all we have to do is put this in your body, Braeburn."
Braeburn looks at her shocked, knowing what she was trying to do. "Oooh no.! I know what you two are thinking!" Brae freaks out and Soarin laughs. "Babe, I promise you'll be okay. This is probably our only chance.!" Soar tells him and he nods at the statement. Twilight uses her magic to take Braeburn, and fuse the sack and him together. He collapses to the ground.
Braeburn gets back on his hooves, feeling dizzy. "I feel.. Really weird..!" he laughs. Soarin looks down between his flanks with huge eyes in shock. "Dude.. You have a vagina..," he stutters.
"I have a what now?" Braeburn questions in extreme shock. He reaches back there with one hoof and feels it. "Oh sweet Celestia..," he mutters, "What in the hay did I get myself into.? Please, tell me this is at least temporary!"
"Well, yes it is. It should heal over time after the baby is born," Twilight smiles and goes back to her studies.
"Wait! What?!" Braeburn panics, "I am a stallion, Princess! I am not built to carry a foal! Are you crazy?!" Soarin starts to laugh at his freak out.
"That's why I will be asking you to ,please, please, please, send a report every once or twice a week on your development," Twilight tells him with some concern, "Who knows what could go wrong? This process hasn't been done in so many years!"
"What?! What do you mean?!" he panics more, as Soarin laughs harder. "This isn't funny, Soar!" he yells loudly.
"I'm just happy I'm not the one going through this!" Soarin laughs harder. Braeburn starts to turn red in anger, really wanting to punch him but he holds himself back, and then calms down. "I just really hope the author isn't righting this as some horrible fetish or something!" Braeburn yells a bit. Soarin looks at him, confused, "That's a fetish?"