At the School's Backyard...
Ronnie Anne threw Lincoln at a wall and gave him a seemingly furious glare as he hit the ground. He then tried to back away, only to see he had nowhere else to run. It didn't help that it looked like Lucy would be too late to help him.
"L-Listen, Ronnie Anne, I was just saying nonsense to get back at Chandler from being such an obnoxious prick!" Lincoln nervously said, but Ronnie's glare remained. "I mean, I do want to fuse with you, but I know how to take no for an answer."
"Alright, Lame-O, listen up!" Ronnie hissed.
The boy swallowed his fears, shed a pair of tears... and then Ronnie blushed and twiddled her fingers as she asked, "D-Do you have any preferred music style?"
"Not really, I'm fine with anything," Linc answered, clearly confused by the question.
Ronnie promptly smiled. Soon afterwards, Ronnie placed a boombox nearby and turned it on. The boombox played some smooth jazz that alternated from a slow to a fast beat. "Let's do this," the girl said, cracking her fingers.
Lincoln got up, dusted himself and started to pull off some dancing moves while Ronnie hugged herself and swung her hips left and right to the fast beat. Lucy sat down as the beat changed to a slower one, upon which Lincoln and Ronnie adjusted their dances accordingly: Lincoln walked to Ronnie, who spun twice before giving Lincoln a dreamy look.
Shortly afterwards, Lincoln and Ronnie grabbed hands as the music grew silent... then changed to a fast beat. Lincoln and Ronnie danced according to the beat, with Lucy tilting her head from left and right to the rhytm. And as all of that happened, a shadowy figure approached the boombox...
Then, just as Lincoln and Ronnie exchanged looks, the music stopped. They turned around and saw Chandler-with a smug smile and holding a hammer-next to a smashed boombox. "I told you I would stop you from fusing with her, didn't I?" Chandler said.
Ronnie and Lincoln separated and beamed angry looks at Chandler. "Leave us alone, Chandler!" Ronnie demanded.
"As if, I'm afraid I can't let you fuse just yet, Lincoln," Chandler answered, all while he could faintly hear somebody rushing after him. But he continued to speak nonetheless. "Only when you have fused with another Loud will I leave you alone."
And then Lucy headbutted Chandler. "Leave them alone!" she exclaimed in a stoic tone.
Chandler winced from the hit, then promptly ran away as Lincoln and Ronnie watched him leave. Lucy tried to chase after him, but Lincoln stopped her. "Don't bother, right now, he's nothing more than an annoyance," Lincoln said, before turning to Ronnie. "I'm sorry we failed to fuse, Ronnie."
"Hey, we can give it another shot some other time, right?" Ronnie replied, putting her hands in her pockets. "Although, I wonder why Chandler will only let you fuse with me once you've fused with one of your sisters."
"Yeah, I wonder that too..." Lincoln remarked.
Back at the Loud House, at Lisa and Lily's bedroom...
Lisa quietly worked on an experiment of hers before Leni arrived. "Hey, Lisa, are you doing what I think you're doing?" Leni inquired. "Are you doing an experiment? Or some other sort of science-y stuff?"
The little genius winced, then promptly turned to her sister and said, "It's just a quick-"
"Nuh uh, you know what mom and dad said about making your experiments," Leni replied with a smug smile.
Lisa groaned, left her experiment and started to do the robot while Leni spun right into her, all just as Lincoln entered the room. By the time he entered and caught their attention, the girls had already fused into Lenisa.
Think Leni, with brown highlights in her blonde hair, a long-sleeved green shirt under her dress and a labcoat.
"Am I interrupting something?" Lincoln asked.
"Not really, I'm just making sure Lisa doesn't mess up the house with her experiments," Lenisa said with Leni's voice. "Anyway, what do you need?"
"I tried to fuse with Ronnie Anne today, but we failed because a prick known as Chandle cut off the music, and he said he wouldn't allow me to fuse until I fused with one of my sisters..." Linc clutched his stomach as he finished, "Why can we Louds fuse?"
"The fusion gene," Lenisa said with Lisa's voice. "It's a special gene contained in the DNA of the Loud family, and some other families, that allows people to fuse into new beings. Supposedly, back when supernatural stuff were actually a thing, certain families had the ability to combine into a more powerful being. But once supernatural stuff became discredited, the fusion gene grew dormant in most families, except for some. The Louds are among the families with a strong fusion gene."
"Is that supposed to make sense?" Lincoln asked, raising an eyebrow.
"Who knows? It's the only answer you're getting, so let's hope it does make sense in hindsight," Lenisa replied, her voice overlapping Leni's with Lisa's before speaking with Leni's voice. "How about you try to practice fusion with me? As in, Leni, once I'm done dealing with Lisa's experiment."
"No, I think I'll do something else-" Linc replied.
"And that something else is training!"
The duo turned around and saw Lynn leaning at the door. "Lynn, what are you doing here?" Linc asked.
"Hearing your little dilemma, and I figured I would give you some help," Lynn answered before walking to Lincoln, grabbing his arm and dragging him out of the room. "Come with me to the backyard, I'll make sure to train your body so you can deal with Chandler yourself next time."
Lincoln just took a deep breath and bid farewell to Lenisa as the fusion returned to the experiment.