The Multi-fusion

Sunburst paced nervously around his room. He was expecting the arrival of Thorax, the current Changeling king, and friend. The reason for Thorax's visit was a spell. A fusion spell. Sunburst had asked Princess Twilight if he could study the fusion spell even further by fusing with a member of another species, and member of the opposite gender, both of who he had already chosen, and was hoping that they were ok with fusing with him. But first was Thorax, for the other species fusion? Sunburst glanced at the door again, and coincidentally, when he looked away, knocking sounded. He grinned.

Thorax is here! he thought with a mix of nervousness and glee. He opened the door to instead see Starlight. He had had a crush on Starlight as a child, and still had one on her today.

"Hi Sunburst!" she exclaimed. She entered the door and hugged Sunburst, pressing her E cup breasts into his chest, making Sunburst blush lightly. She was wearing a purple shirt, and blue shorts.

"Hi, Starlight," Sunburst said as he hugged her back. "I wasn't expecting you to be here today! Not that seeing you now is a bad thing." Starlight pulled out of the hug.

"I know," she said. "But I finished all my friendship lessons earlier than expected, so I came early!" She frowned. "There's nothing wrong with that, is there?" Sunburst shook his head.

"No, no, it's fine," he said. "It's just that Thorax was going to arrive today to help me with a spell."

"Oh," he heard a voice say. "So that's what I'm helping you do?" He looked out the door, which he then relished he had forgotten to close, and saw Thorax. Thorax was wearing (surprisingly) a suit with a tie. Said suit was a sandy brown, which he looked very good in, which, again, was surprising, since was multicolored.

"Oh, hi!" Sunburst said."Good, you're here!" As Thorax entered, Sunburst moved to close the door.

"What spell is it?" Starlight asked.

"Uh, ok," Sunburst said as he moved back to his original position. "Well, you know how Twilight had recently fused with her friend, Fluttershy, right?" Starlight nodded.

"Of course," she said. "I mean, I wasn't there because I was helping Applejack, but yeah, I know."

"No," Thorax said. "Twilight fused with Fluttershy?" Sunburst nodded.

"Yes, and it was very intresting, to say the least," he said. "Which is why I invited the both of you here. I was going to study the effects and whatnot of fusing with a member of a different species, and the opposite gender, and then both at the same time. Plus I kinda wanted to see what it would be like, but I was going to fuse with Thorax first, mainly because I didn't know you were going to be done with your friendship lessons this soon. Not that that's a bad thing, but I wasn't ready for you yet."

And I need to figure out how to hide my crush on you, he mentally added.

"A fusion spell?" Thorax asked. "Intresting. How does it work?"

"Well, it takes two ponies, maybe three, that's what we're going to find out soon, and makes them into one pony. It combines the physical and mental attributes of both ponies, and combines them," Sunburst said. "You're still sure that you want to do this Thorax?" Thorax nodded.

"This spell seems exciting," he said. "Let's do it!" Sunburst smiled.

"Wait, so all three of us are going to fuse together?" Starlight asked. Sunburst nodded.

"Yes, but not now," he said. "But first I'm fusing with Thorax, then you, then both of you." Starlight nodded.

"Ok, now I get it," she said. "This could do some good for a friendship lesson!" Sunburst nodded.

"Ok, that's not originally thought of it like, but that works," he said.

"Good," he said. "Now, this is the awkward part. Starlight, you're going to have to go into another room, because we need to be naked. Which is why I was expecting Thorax first." Starlight lightly blushed, as did Thorax.

"Really? That's why Thorax was supposed to be here first? I'm sorry," she said. "So when we fuse in a couple of days, we're going to have to be naked?" Sunburst nodded.

"I'm sorry, but yes. And you don't need to be sorry," he said. "Now, Thorax, you're sure you want to do this?" Thorax nodded.

"Yes, I am sure," he said. "Let's do this!" Sunburst smiled nervously and nodded.

"Ok then," he said. "Starlight, can you go into the kitchen?" Starlight nodded.

"I won't come in until you have some clothes on," she said as she entered the kitchen. Sunburst faced Thorax.

"Ok, what happens after we take out clothes off is between us and only us, ok?" Sunburst said. Thorax nodded.

"I know," he said. "You have my word." Sunburst nodded as he started taking his shirt off. About a minute later, both were naked. Sunburst started charging the spell.

"This won't hurt, will it?" Thorax asked suddenly.

"I don't think so," Sunburst said. "The spells almost ready, so prepare yourself!" He had barely finished saying that when an orange glow surrounded Thorax and himself. Thorax was lifted into the air and brought close to Sunburst. The last thing Sunburst thought was: "It kinda tickles."