This isn't a short story. It's a small anecdote.
A short story is typically over a page long.
This is a few paragraphs.
It was OK, but I think you should improve upon some things.
Try making an outline first.
This will really help make your paragraphs make sense.
For example, you go straight from Maricel farting to her pulling on her underwear. There is not logical transition to this, and if there was, you didn't explain it. You need to keep your ideas together instead of jumping around all over the place.
Where you write, "As she turned over in bed she farted. The stench of this fart filled the room. Maricel blushed in embarrassment about the fart," is really choppy. The sentences by themselves are just fine, but you can combine two(or all three) of them to make something that is much better. For example, "As Maricel turned over in bed, she farted. The stench of this fart filled the room, and the girl blushed from embarrassment."
And, while personification is good to use, how is underwear loving?
For those things, you'd have to say something like, "Her underwear lovingly carressed her nether regions".
You need to insert paragraph breaks whenever dialogue shows up, too. That's a must.
Lastly, the most important thing is that 'so what' factor. With short stories, it's even more prominent because it's only a few pages long. Your writing has to have a purpose, a reason for the people to read it. What was yours? Whatever happened means nothing because it didn't teach me anything, and it didn't give me something to look back on and appreciate.
Anyway. Keep on trying. Writing takes a great deal of work and experience. Even the award-winning writers always need to improve. No writing is ever perfect. With that said, I hope you don't give up on this, even if you get some discouraging remarks. Use them as fuel to improve. (:
A literate roleplaying community.