I hope you will enjoy this little story.

A cat was sleeping on a carpet inside her owners’ house. It had been a long day of doing lots of fun stuff, and she could see that the sun was about to go down.
She yawned and rested her head on the soft ground. “Time to sleep,” she thought and closed her eyes slowly.... but then something interrupted her.
“Hi!” said a soft voice, along with the sound of four big paws walking towards her. “Whatcha doing, Alice?”
Alice sat up on her tired legs and raised her head slowly up to look at the creature. “Hi...Flower ...what do you want?” she asked the big wolf-looking dog, annoyed.
“Did I wake you?” asked Flower and lowered her head to the same height as Alice. “I'm sorry, but I just wanted to ask you something!”
“Ugh... what it is then?!” said Alice and rubbed her eyes. “Ask it, so that I can go back to sleep!”
Flower smiled and then asked her, “Do you know where I put my toy?”
Alice slowly looks straight at her, into her eyes. “Your... toy?... what toy?!”
“You know!” The dog says and lies down in front of the much smaller cat. “The one that sounds funny when you chew on it!”
“That toy?!” Alice shouts and points at the gummy duck sitting on some pillows on the couch.
“YES!” Flower shouts happily and then runs to it, picking it up. “I've looked everywhere for it!” she says and chews on it, making it give out some squeaky sounds.
Alice stares at her angry. “You woke me up just because of that?!” She asks and walks towards her big friend. “You woke me up just to help me find your toy?!”
Flower nods happy. “Yep!”
Alice then points to the ground in front of her. “Could you put your head down over here, please?”
Flower looks at her, confused, but does so, and rests her big wolf-like head there. “Okay?” she asks curious. “What now?”
Alice then stretches her maw around the dogs snout, and starts sucking her in with a surprising amount of strength.
Flower looks at her wide eyed, but she doesn't have the time to react before her head is completely pulled into the little cat’s slimy and wet stomach.
Alice licks the dog’s body as it goes in, and she’s soon swallowed over half of her friend body. She takes a deep breath through her nose and rests for some seconds.
Flower waits silently as her little cat friend stops. “... Alice?” she then starts to get sucked in again once she had said that.
The cat’s belly widens as the dog’s body fills her up, and she continues to lick and drool over it until it’s been completely covered with her belly’s wet and fleshy walls.
The dog known as Flower is then, after three more seconds, sucked inside, with nothing left outside except for some bits of her hair. “A-Alice?!” she asks in the too tight space she's in. “When are you going to let me out?”
“When I—“ She lets out a loud burp. “--feel like it! “ she says, and then goes to sleep with, her big dog-sized belly.
“O-okay!” Flower says and tries to go to sleep too.

The end!x3

I hope you more or less liked it!:3