Ok so Lars and the cool kids is an episode where the gems are barely present and concentrates on Lars and Steven. So I'll just rewrite the beginning where the gems appeared and make this one short. Sorry.
Lars and the cool kids.
The gems were standing on a ledge right above a small pool of water filled with Roses moss.
"This doesn't look good at all." Pearl said. Coral looked over to where Steven was and saw him jumping on the rocks above the moss.
"Woah. Cool." Steven said, reaching out for the moss.
"STEVEN!" Amethyst, Pearl, and Coral screamed. Meanwhile Garnet grabbed a rock and threw it at the rock Steven was standing on. It flipped and Steven flew to the gems. Coral caught him.
"STEVEN'S HERE" Steven yelled.
"You have to be careful Steven." Coral said, putting Steven on the ground.
"Why?" Steven asked. He saw a bird land on a log. The moss grabbed the log and snapped it in half, before pulling it underwater.
"What is that stuff" Steven asked.
"It's the moss that Rose Quarts raised on the hill." Garnet explained.
"My mom planted this stuff?" Steven asked again.
"Rose Quarts used to climb that hill every spring and tend to the moss on the top." Pearl explained, summoned a hologram of Rose Quarts on the top of the hill.
"With Rose… gone, the moss is on the move" Coral finished.
"It's lost." Steven said, making a sad face.
"It's not lost, it's gross." Amethyst said.
"Yes. But Rose loved it anyway. She saw the beauty in everything no matter how gross." Pearl said. "Fortunately I know just what to do in this situation."
With everyone gathered behind her Pearl turned around and made some weird animal noise. (Honestly Idk what she was doing but whatevs) Then she danced for a bit and her gem started to glow brighter and brighter.
"This is why I get up in the morning." Steven whispered to Amethyst.
A glowing object floated out of Pearl's pearl, and landed into Steven's hands.
"Is this… police tape?" Steven asked.
"Isn't this great? This way we don't even have to use magic. Humans will just see this and walk away."
Amethyst took the tape and got ready to throw it. Garnet was on top of a rock.
"Don't hold back." Garnet told Amethyst.
"I never do." Amethyst replied, throwing the tape to Amethyst, while still holding the end in her hand. Garnet caught it and wrapped it around a tree. Then she tossed it to Coral, who wrapped it around a boulder, and threw it to Pearl. Pearl caught it and made a nice bowtie to hold the web of tape together.
"Perfect. Now we can come up with a plan to move the moss back to its hill." Pearl said, looking at the police tape.
"Who wants to get some lunch?" Steven asked. The gems looked at him without saying a word. "Just me then. Nice." Steven left to get some fish dew pizza while all the gems went back to the temple.
"Alright. Any ideas on how to move a bunch of dangerous moss back to the hill?" Pearl asked. Amethyst shrugged and sat on the couch. Coral joined her. Garnet adjusted her shades and shrugged.
"Amethyst, could you at least try to come up with something? We don't even need sleep." Pearl said. Amethyst yawned.
"Relax P. Maybe the answer will come to me in my sleep." Amethyst said, and fell asleep. Garnet went to her room. Coral reached into her pearl and pulled out a few books about moss. Pearl took one of them and started searching.
1 hour later.
"Hey guys. I'm back." Steven said. He had a handful of flowers in his hands. "Lars and I made some new friends. Jenny, Sour Cream and Buck Dewey. We hanged out a bit. Also we got the moss on the mountain and the view from it was amazing."
"Waitwaitwait. Hold on a sec. You got the moss onto the mountain?" Coral asked.
"Yeah. The moss just wanted to bloom." Steven said, giving the flowers to the gems. Garnet took a few and put them on the table.
"Great job Steven." Garnet said, before walking away.
"Thanks" Coral said, taking one of the flowers. "I can see why Rose was fond of it."