Location: Panthalassan Ocean (a.k.a just 'Panthalassa'), between the lands of Claustrophobistan and Thalassophobistan
Time: to die
"Are you really sure you want to do this?", Mizumi told you, raising her eyebrow. You told her you want to stay in a submarine with her for three days, but she gave you a warning: "I'm really gassy, I'm a skunk girl, after all. One of my farts will be enough to make the entire submarine uninhabitable, and there will be no quick way out as we'll have to get above the ocean in order to escape from the stink. If we're deep underwater, you're gonna suffer for a while"
You told her that you were sure about that, and that no matter how bad her farts will stink, you shouldn't be allowed to get some fresh air until the three days have passed.
"Oh, friend, that sounds like a suicide attempt~", she said, giggling, "I mean, metaphorically... you're not literally going to die but... eugh...", she said, shuddering at the thought of you being tortured by her stinky farts. As a skunk girl, her farts are way stinkier than normal farts.
You tell her that you're completely sure and also that you like the idea of being tortured by a skunk girl's stinky farts. She giggled when you said that.
"Alright, alright... let's get into the submarine!", she said, grinning happily, and both you and her got into the submarine. You have enough water and food for 9 days, and you're only going to stay there for three days so it will be more than enough!
You and Mizumi started chatting a lot, and she was starting to tell you a bit more about her.
"As a kid, I grew up in Apopathodiaphulatophobistan, a country where being constipated is illegal and is punished with death. Luckily, me and my parents moved out from there when I was 5, to a better part of Pangea", she explained, telling you some stuff about her childhood.
You told her that since you've been a child, you've been interested - other than in girls' farts - in the ocean. You've always wondered what was down there, it was always mysterious for you.
"What's down there, you ask? It's the Panthalassan Ocean you're talking about. Just like Pangea is the land of everything, Panthalassa is the ocean of everything, and anything you can imagine happens somewhere under there. It's an infinite ocean. For example, right now, somewhere in Panthalassa, there is a sponge living in a pineapple under the Panthalassan Ocean, close to a squid and a starfish, the sponge and the squid work in a fast food restaurant owned by a greedy crab, close to that fast food restaurant there is another fast food restaurant owned by a plankton who wants to steal the recipe of the hamburgers of the competitor. In that same city, there is a squirrel who can breathe underwater because she wears something similar to a space suit, she's very good friends with the sponge and the starfish", she said.
You laugh, because the story she told you was completely absurd, very surreal. How can anything like that actually happen?
"You laugh, but it's true. Anything you can imagine happens somewhere in Panthalassa, it's the ocean of everything, after all", she said, shrugging, "by the way, I have to fart now, and the entire submarine is gonna stink really badly, I'm a skunk girl, after all, my farts reek. Are you ready? Are you really sure you want this? You can change your mind now, if you want", she told you, warning you of how bad her farts smell.
You told her that you really want that, and that no matter how bad her farts smell, she shouldn't drive the submarine up the ocean to breathe some fresh air, you told her that you wanted to go through the three whole days like that, without being allowed to escape.
"Alright, then, I warned you!", she told you, raising her tail, "NNNGGGHHH~♥♡♥"
☠☣☢PBBBRRAAAPPPSHSHSHTTTTSSSFFF☠☣☢
She let out an absolutely putrid fart that took less than 10 heartbeats to fill up the entire submarine with an extremely disgusting, nauseating stench that smelled kinda like sour rotten eggs but way worse than that. You didn't even have the time to blink your eyes and immediately started gagging, the smell was pretty much unbearable. You were starting to change your mind, you were suffering because of the extreme stink, and you realize that maybe breathing some fresh air was all that you needed, but it was too late, you already agreed to this.
"Aww, yeah, everyone reacts like that when they smell my farts~♡", she said, giggling and having lots of fun looking at your disgusted, nauseated face.
As the submarine was going deeper into the ocean, it was getting darker, because the amount of light filtered through the submarine's windows was decreasing, and the atmospheric pressure due to the water was increasing, about 100 kPa (one bar/atmosphere) every 10 meters (33 feet) of depth. While you were gagging uncontrollably from the awful stench that filled the submarine, Mizumi told you some random trivia about Panthalassa.
"You may wonder what's the maximum depth of Panthalassa. Well, there is no maximum depth, and I'm not just talking about potential infinity, I'm talking about actual infinity here. You may think that's impossible, well, it isn't. See, the depth of Panthalassa, due to its infinite and varied nature, varies depending on the location. In some places, the depth is less than one meter (3.3 feet), and one can easily bathe there, for example if it's a beach and one wants to have fun. That low depth can, in some places, extend to several kilometers (~miles), leading to the existence of beaches where you can walk for a really long distance from the shore without drowning. In some places, the depth can reach several kilometers, several light years, even. Conventional physics doesn't always apply to Pangea or Panthalassa, after all. In some places, the depth is not just potentially infinite, but actually infinite. How? Well, first, imagine a submarine that from the air, goes down. With an actually infinite depth, it can go down forever, millions of light years, and even more, without ever touching the bottom of the ocean. You may then think that there is no bottom of the ocean, but you would be mistaken. There is in fact a bottom of the ocean. Assume that a submarine is located on the bottom of that infinitely deep part of the ocean, and it goes up, trying to exit the ocean and reach the air, it can go up forever, trillions of light year and more, and never exit the ocean and reach the air. Not just that, but the two submarines that I've talked about, the one going down starting from the air, and the one going up starting from the bottom of the ocean, will never meet each other, no matter how far they travel. It's like the two areas are in some way disconnected from each other. Infinity can be a disturbing thing to think about, I know. As for the depth of the area we're in, I have no clue. Hey, are you even listening to me?", Mizumi said, raising an eyebrow as you didn't seem to be interested in what she was saying. Or perhaps, there was another big problem you were face and couldn't listen properly to her explanation.
In fact, her explanation pretty much fell on deaf ears. In normal circumstances, you would be interested in listening to something like that, but now you're too busy gagging from the stench of her fart to even pay attention to anything else in existence. Being a skunk girl, not only her farts are extremely stinky, but they linger for an awfully long period of time, especially in a closed space like a submarine.
"Oh, I get it, you're too busy gagging from the smell of my fart to pay attention to what I said about the ocean. That's fine, sorry, I didn't want to interrupt you~hehehe~♡♥♡", she said, giggling, she was feeling so satisfied and even a little bit aroused to see you reacting so strongly to the smell of her fart, "oh, don't worry, I have more farts for you in the next three days, lots more, in fact, you'll wish you didn't have a nose~♡♥", she said, giggling happily.
It was almost lunch time, and you kept gagging non-stop since when Mizumi farted.
"It's almost lunch time, dear! Before eating, would you like to hear some stuff about Panthalassan ecosystem, biosphere and marine fauna? Any fish you can imagine exists in Panthalassa, after all, aren't you curious?~", she asked, proud of her knowledge, but you were just gagging and barely able to speak, you just managed to tell her that you wanted to get out from the submarine and breathe some fresh air because the stench was killing you.
"Oh no, my friend, you've asked specifically to not allow you to escape from here, you're gonna stay here for three days no matter how my farts smell~let me make things a bit stinkier for you~♥", she said, giggling and raising her tail again, "MNGHM~hehehe~♡"
☠☣♥PBBBRRRAAAPPPSHSHTTTSSSFFF☣☠♡
The air inside the submarine was becoming even more putrid than it was before. Before today, you couldn't had imagined such a horrible smell could exist, but now you do, and Mizumi was right, it's making you wish you didn't have a nose.
"Time to eat something now, it's lunch time~hehehe~♥", she said, preparing the food for herself and for you.
You could barely manage to eat, you were gagging so much that you felt like the vomit was rising up from your throat, but you ate something because you knew that not eating would make you weak... not that 'strength' was of any use to be able to stand such an awful smell, it smelt way worse than any fart you could imagine. You were greatly underestimating how bad a skunk girl's farts smell.
Eventually, it was time to go to sleep, you were laying down on the submarine's floor, powerless, even though so much time had passed you couldn't get used to the horrible stench, you wanted to vomit but weren't able to for some reason... but vomiting wouldn't solve anything, and you knew it.
"Let's go to sleep now, my friend~♥", Mizumi said, yawning and smiling happily, "what's the matter, you can't sleep? Aww... I know an effective way to put you to sleep, don't worry, you have a good friend right here~♡", she said, giggling a bit, and pressing her ass right on your nose, "say goodnight~"
☢☣♥BBBRRRAAAPPPTTTSSSFFF☣☠♡
The second day was very similar to the first one, and you were tired of breathing, your eyes were watering so much that your vision was starting to blur, you wished there was at least some spot of odorless air somewhere in the submarine, but there was none. Eating was difficult, breathing - even harder, you were harshly regretting your decision, but now it's too late.
☣♥BBBRRRAAAPPP☠♡
On the third day, the submarine touched the bottom of the ocean. At least, the bottom of the part of the ocean of your current area.
"It seems like the depth of this part of the ocean is around 255 meters [841.5 feet], and the atmospheric pressure is around 2,650 kPa. Luckily this is a very resistant submarine... the same thing can't be said about your nose~♥hehehe~♡hahaha~♥", she said, giggling and laughing, she was really enjoying teasing you, "I know you like it, your nose needs more of my gas~MNGHM", she raised her tail and pressed her ass right against your nose to give you the full dose of her noxious fumes.
☠♥PPPRRRAAAPPPTTTSSSFFF☣♡
Being farted on by an extremely nerdy and gassy skunk girl was a stinky experience. Of course just saying 'stinky' is vastly an understatement. Extremely rancid, puke-inducing.
"Today you'll be able to breathe fresh air again, hehe~", she said, giggling. It was not of much help, because breathing in such unbearable stench, even a heartbeat seemed to last an eternity.
At the end of the day, you reached the land again, and you could breathe some fresh air. As soon as the submarine was opened, the nasty air that was accumulated in it was spreading through the air, and for a long distance close to the shore, the air was pretty much unbreathable due to how stinky it was, and nobody could stay there by their own will. You passed out on the sand of the beach due to the exhaustion, three days of having to breathe some absolutely revolting farts erased all of your energies. Mizumi giggled a lot, she found your reactions to the smell of her farts to be really cute and adorable.