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Language:
English
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Published:
2026-02-15
Words:
493
Chapters:
1/1
Kudos:
16
Bookmarks:
1
Hits:
137

FossilCake

Summary:

Shelly x Cosmo- I don't know. Don't interact if you don't like it please :)

Notes:

This was made by a Shelly x Cosmo shipper/FossilCake. If you don't like it please ignore it.
The most of this fanfic will be wholesome and sentimental, there might be a few small "freaky" parts though.

This was also made by an OSDD system, OSDD = Other Specified Dissociative Disorder, it is an involuntary trauma response. We are a fictive heavy system. Fictives are alters from fictional sources. Alters are different personalities in the system. A system is a word a lot of people use to describe their OSDD/DID brain. We have a Shelly fictive in our system, these are some of her source memories. And some of which she shares with our best friend’s system’s Cosmo fictive. I hope that's enough information, if you want to learn more then you can find videos or articles explaining it.

Work Text:

The confession

Cosmo and Sprout were in the kitchen, baking cookies.
Cosmo was talking to Sprout about Shelly, he was blushing.

“You like her a lot don’t you? I’m happy for you both.” Sprout said peacefully.

“Yeah… She’s really sweet, she knows a lot about dinosaurs, she’s so cool, and strong, an-” Cosmo was interrupted.

“You like her!!!!” Sprout teased, giving Cosmo a hip bump, putting him off balance.

Cosmo giggled and gave a hip bump to Sprout, knocking him off his feet.
Cosmo helped him up and they continued baking.

After they were done giving cookies to the children, toons, and toon handlers…
Cosmo snuck a small batch to Shelly’s room to enjoy them together.

Shelly was sitting there on the side of her bed, her feet swinging to the floor. She heard a knock on the door.
“Come in!” She called, hoping it was Cosmo.

Shannon walked in the door, with a notebook.
“Hey Shells! What’s up? You seem down.”

“Oh nothing…” Shelly sighed looking at her dinosaur rug.
“I just- was kind of expecting Cosmo to come in…”

“Oh and why’s that?” Shannon tilted her head.

Shelly blushed.

“I know that look!” Shannon gasped. “You like him~”
Shannon snuggled Shelly closer to her.
“Hey, listen to me. You are amazing, and so so sweet. Cosmo would love you, and if he doesn’t then who needs him!”

Shelly giggled.
“I just… I don't know if he likes me too…”

“Well I’ll let you two talk it out, alright?”
Shannon got up to open Shelly’s door.

Cosmo was there, holding a fresh batch of cookies, his hand was up as if he was about to knock. His face was flushed as Shelly stared at him.

“I- I made you cookies… They’re dinosaur shaped.” Cosmo stuttered.
Cosmo nodded at Shannon and entered the room, he reached out to hand Shelly the pan of cookies.
“I hope you like them…”

Shelly looked at Cosmo, she didn’t know what to say.
“Cosmo… I-”

“Well come on! Try them! I want to see if you like them.”
Cosmo said, trying to change the topic slightly.

Shelly grabbed a spinosaurus shaped cookie, with red icing on it, and darker red sprinkles for the eyes. She bit into it, her face lit up.
“Cosmo! These are amazing! You’ve improved so so much!”
She reached in to give Cosmo a hug.
“I love you…”
She whispered in his ear.
As she reached out of the hug she realized what she had just confessed.
“I- I- I- mean I… I love the cookies! They’re delicious and-”

Cosmo put his hand on her hand, and looked Shelly in the eyes.
“I love you too Shelly…”

Shelly started to tear up.
Cosmo reached in for a kiss, but before he touched her lips he asked,
“Can I kiss you?”
Shelly nodded.
“Yes! Yes! YES!”
And she grabbed his head gently but tightly and kissed him.

“I love you.”
They said in sync.