Short chapter. Again.
Steven tilted his head, "But how exactly do you fuse?"
Amethyst rolled her eyes playfully, "Ah, it's really simple. You just gotta do some fancy dancing and stuff and boom!" She slammed her hands together, "You're fused!"
"That's... slightly true." Spinel told them, her gem began to glow, "The 'fancy dancing' part is preparing yourself mentally to become one with your partner. Many gems have their own styles of dancing, such as Pearl's ballet, Amethyst's... 'break-dancing', and my simple waltz."
Pearl nodded in agreement, "And we can demonstrate it right now."
Steven squealed happily while Amethyst blew a raspberry and muttered, "Show-offs..."
In the living room, Pearl performed her graceful style of dancing and Spinel, holding her dress up, strutted towards her. They made contact and Pearl dipped Spinel, enveloping them in light. Peach Moonstone reappeared, smiling gently to Steven and Amethyst.
"What's going on?" asked Garnet as she walked in.
"Giving our Steven a little lesson about fusion." replied Peach Moonstone.
Garnet seemed to brighten up, "Why don't we all teach him?"
For the next hour, Garnet and Peach Moonstone attempted to show Steven how to fuse. They performed more dancing, even making Amethyst and Steven dance.
When she saw Amethyst gyrating her hips, Peach Moonstone face-palmed in disappointment with her upper and lower hands. Garnet remained blank.
Unfusing back to Pearl and Spinel, the two gems did a few of their own dance moves to show the boy, their gems not glowing this time.
Finally, all the gems made another attempt to unify themselves with Steven. Snapping their fingers, putting their foot down, and running to the right of the stage, they leapt and floated mid-air. Steven tried to join in, but simply fell down on the floor.
"Man… you guys are so much better than me," Steven grumbled, wrapping a towel around his neck.
Spinel stroked his back, "It's your first time, sweetheart. We've been doing these for, like, centuries! No one's gonna get it first try. Even Pearl and I struggled the first time we formed Peach Moonstone."
"But Spinel," Pearl spoke, sounding worried, "Steven's half human. How do we know if he's even capable of fusing? The four of us are made out of light, and he's organic."
"Organic?" Steven asked.
Spinel rolled her eyes, "So what? If he's got a gem, he can do anything a gem can do."
"Perhaps so," murmured Garnet.
"Yeah! It's Steven! Who knows what's gonna happen!" Amethyst popped in. Sighing, Steven removed the towel and walked out of the house. The Gems watched him leave, Spinel having a gentle smile on her face.
"Don't worry, guys," smiled Spinel, "Steven will find out in the best way possible."
Pearl stared at her, "What way?"
"His way."
Spinel continued to wash the rest of the dishes. Steven had been gone for a long while, but she knew he needed time to himself.
"Hey Spinel!"
A weird yet familiar voice made her pause and she turned around. A human, looking similar to both her boy and his friend stood at the door, making a proud pose and giving her a big smile, "So, what'd ya think? We fused!"
... Spinel dropped the teacup.
"You... fused?" Pearl asked, aghast while Spinel cleaned up the remaining pieces of the broken teacup, still recovering from the shock. Amethyst chuckled and Garnet kept clapping eagerly.
"This is unprecedented," Pearl began to inspect the new being, "A Gem fusing with a human being? It's impossible! ... Or at the very least inappropriate."
Spinel dumped the glass into the trash, "Well, I think whoever this fusion is is amazing just the way they are." She crossed her arms as she stood beside Pearl and shot her a glare.
"That's right!" Amethyst joined in, "We gotta think of a name for ya! Steven... Connie... Stevonnie?"
The newly-named Stevonnie seemed to approve, "Yeah, that works- ERK!"
Spinel hugged the fusion tightly and let out a light scream of glee, "You've finally fused, my loves!"
However, Pearl wasn't as ecstatic as everyone else, "W-Well, I'm glad you are enjoying yourselves, but I think it's time you should unfuse-"
"Oh come on, Pearl!" Spinel angrily retorted, uncoiling her arms and directed her body to the other gem, "How come you always have to spoil Steven's fun? He's learning something from this! You should be proud!"
Pearl was taken aback, but Garnet stepped up, gently, pushing Amethyst and Spinel away, "Stevonnie."
Garnet rested her hand on the humanoid fusion's cheek as the other gems backed away, "Listen to me. You are not two people. And you are not one person. You... are an experience! Make sure you're a good experience. Now... Go! Have! Fun!"
"And uh, Connie!" Spinel quickly added, "Make sure you get Steven back home before 9!"
Hours later...
Spinel looked up at the clock. 8:50 o'clock. Now she was getting worried. Finishing up the chores around the house, Spinel was about to head outside and wait on the porch for Stevonnie's return, but she was stopped as Steven rushed in.
"SPINEL!" He wailed, running up to hug her waist and start sobbing.
Spinel immediately became concerned and hugged him back, "S-Steven? What's wrong, buddy?"
The child looked up at her with tear-filled eyes that could break someone's heart, "W-We went to a party, and Connie and I were dancing and we were having a ton of fun!" He hiccuped and Spinel wiped his tears, "T-Then this guy named Kevin tried to dance with us, but he was acting really weird and I didn't like it!"
As he continued to cry, Spinel froze in place, her expression unreadable. "... What did he do?" She asked quietly.
Steven sniffled and rubbed his cheek, "H-He was standing so close to us... and he called us 'baby' and he-"
The boy stopped as Spinel's grip on him tightened. Spinel just stood there, glaring straight-ahead, most likely picturing this "Kevin" seducing and touching her precious baby boy and his friend who probably felt the same way he was feeling.
"... Steven."
"W-What?"
"Can you do me a little favor?"
"L-Like what?"
"If this... 'Kevin' ever contacts you again, you'll be sure to let me know. And I'll teach him something he'll never forget..."
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OUR ANGRY SPAGHETTI MOM IS READY TO KILL