The Multi-fusion

Shining Sensor walked into the room that Shining Armor had given him, and picked up a tape measure. He pulled down his pants. He extended the tape measure and put it against his penis.

Ok, eight inches flaccid, he thought. He glanced at a Playpony magazine that somepony had put in the room. Time to study the more sexual part.

About 30 minutes later, Shining Sensor exited the room, with a satisfied grin on his face. Shining Armor and Cadence were sitting outside of the room, waiting and talking.

"I'm done with the...stuff," Shining Sensor said. "Um, there is a small beaker of my seamen in there if you want that to be studied." He was blushing lightly.

"Cool," Shining Armor said. "What are you going to do now?" Shining Sensor shrugged.

"I'm probably going to defuse into Sunburst and Thorax," he said. "And then Sunburst will probably fuse with Starlight after an hour or two."

"Why the wait?" Cadence asked.

"Well, I don't want to jump into it immediately because there could be some kind of negative side effect," Shining Sensor said.

"That makes sense," Shinning Armor said. Shining Sensor turned to leave, but Cadence cleared her throat.

"Have fusion sex," she said. "Tell us what it's like." Shining Sensor blushed and nodded.

When Shining Sensor arrived at Starlight's house, he opened the door and cried out "I'm home!" There was some rustling in the kitchen, and then he saw Starlight's head.

"Nice!" she said. "Are you going to defuse now?" Shining Sensor nodded.

"In about an hour, Sunburst will fuse with you," he said. "Uh, unless you want to do it later."

"I was kind of hoping we would do it sooner," Starlight said.

"Eh, we can talk about all that later," Shining Sensor said. "Now, can you please step outside of the room?" Starlight nodded and her head disappeared behind the doorway. Shining Sensor pulled his shirt off, with only minor difficulty from his horns. Then his pants and underwear came off. He started charging the spell, mental preparing himself for the separation. Then he casted the spell.

A minute later, Sunburst woke up. He sat up and saw that Thorax was already up as well. Thorax was staring at Sunburst.

"That was interesting," Thorax said. "So, what now?"

"Well, we should probably get dressed, but I'm probably going to fuse with Starlight in about an hour," Sunburst said. "Other than that, I'm not sure. Now, where are the clothes again?"

"I think there in the guest room," Thorax said. "I'll go get them."

When Thorax arrived a few minutes later with Sunburst's clothes (Thorax had already put his back on), Sunburst was talking to Starlight through the doorway.

"Is ten minutes good, then?" Sunburst was asking.

"Yes, that seems good," Starlight responded.

"I have your clothes," Thorax said, his head facing away from Sunburst. Sunburst turned around.

"Ok, thanks," he said. He grabbed his stuff and a minute later, he was dressed. He opened the door to let Starlight in.

"So what were you just talking about?" Thorax asked.

"When the next fusion is," Sunburst said. "Starlight wanted to do it now, but I convinced her to wait a little."

"Yeah, but until then, how was it?" Starlight asked.

"I remember everything that Shining Sensor experienced," Sunburst said. "It's like something out of a sci-fi story."

"Yeah, it was great!" Thorax said. "You'll like it!" Starlight grinned.

"Good, very good," she said. "Anything else I should know about Sunburst before we fuse?"

"His love for you is huge!" Thorax said.

"Hey!" Sunburst complained. "Why?"

"Because your reaction was funny," Starlight said. "Now, can we fuse?" Sunburst sighed.

"Sure. Thorax, can you exit please?" Sunburst asked. Thorax nodded and stood up.

"I'll see you later, then," he said. He turned around and entered the kitchen, closing the door behind him. Sunburst turned towards Starlight.

"So, uh, we will need to take our clothes off for this," Sunburst said. He gripped his shirt and started pulling it off. Starlight lightly blushed and started pulling her shirt off too. Half a minute later, all the clothes were lying on the ground. Sunburst was staring at Starlight.

She's beautiful, he thought.

"Are you ready?" Starlight asked. Sunburst shook his head and stopped staring.

"Yes, are you?" he asked. Starlight nodded.

"Cast it," she said. Sunburst nodded and started charging the spell. As it reached it's climax, Sunburst grinned. He was, after all, about to fuse with the most beautiful girl in Equestria. Then he casted it, and it drew them together.