PRESSURE ONESHOTS?! (Specifically Sebastian)

Surprise!..or not (Sebastian Oneshot)

(Yet another request from my bestie >_<)

CW: Possible fetishes (Stuffing), foul language

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You definitely couldn't let Sebastian see this.

You went out into the garage while Sebastian was asleep in his room, carrying a huge cake to the fridge outside. The cake, which was ten tiers tall, was for a special occasion. Your friend was having a party and you were in charge of the food, so you had to make sure that nothing happened to it. ESPECIALLY the cake.

Once you had placed it in the fridge, you went and headed back up to your room to get some shut-eye. Little did you know, a certain giant fish man was getting up for a little late night snack..

Rubbing the sleepiness out of his eyes, Sebastian would yawn as he sat up on his pile of blankets and pillows before groaning, doing a big stretch. He then proceeded to sniff the air a little before slowly slithering out of his room and into the kitchen to get some food, his tummy rumbling a little. That's when he smelled something awfully..sweet. It seemed like it was coming from the garage. He wanted to see what it was.

Sebastian slowly slithered towards the garage, squeezing himself through the door. Oh yeah, it was definitely in there. He could smell it. He looked around for a moment before he spotted a spare fridge that was tucked away in a corner.

"Ah..found you.." Sebastian would mutter to himself as he grinned, slithering over towards the fridge before yanking it open. When his eyes lay upon the ginormous cake in the fridge, his mouth began to water immediately, and he bit his lip. Had you been hiding this from him? Why? Maybe you were saving it as a surprise for him..

In that case, Sebastian was grateful, chuckling to himself as he pulled the cake out of the fridge and set it on a table, rubbing his hands together. He just looked at the cake for a moment before he couldn't hold back his hunger anymore, shoving two of his clawed hands into the cake and stuffed it into his mouth, tasting the sweet frosting and feeling it getting on his face a little.

Sebastian dug through that cake like a child would in a sandbox, shoveling handfuls of the overwhelmingly sweet dessert into his mouth and quickly swallowing it down. His third hand was resting on his stomach while he ate, feeling how it slowly bloated outwards a little with each tier he consumed. This lasted for only about twenty minutes before he was finished, letting out a stifled burp before groaning, holding his stuffed belly. That was absolutely delicious. He hoped you'd forgive him in the morning for ruining the surprise..

...

You woke up the next morning, and as soon as you got up, you immediately had a gut feeling that something happened while you were asleep. You quickly pulled on a shirt and some pants before going into the garage to check on the cake..only to find a sleeping Sebastian curled up on the floor next to an empty platter with nothing but crumbs and bits of frosting on it. You could see past his tail that his belly was swollen and could hear small rumbling noises coming from it, likely digesting the cake at this moment.

Welp.

Shit.