Twilight and Fluttershy go hiking and get all hot and bothered. Typical trashy shipping stuff goes down. All their friends start coming out as well. Also Celestia nearly dies.

There we go.
I hope that appeases the manchildren that didn't like the previous story description.
Feel free to complain in the comments about how a romance story about horses from a show for children has somehow offended your conservative sensibilities.

I'm going to make a delicious sandwich out of black forest ham.

Fluttershy has a crush on somepony, and her best friend wants to help her with her love life. Will she make it or will she be too shy to confess? Warning: contains femslash. If you don't like it, don't read it! There will be some AppleDash in future chapters.

This fic isn't part of She Knows How to Treat a Lady and its sequels.

Original pic belongs to IraeCoal, here's her dA, make sure to check her out, you won't regret it!

Sequel its now up! A Bell's Sonata Magic of Love Part 2

(Very loosely) based on the true story of a poly acquaintance of mine trying to find a restaurant on Valentine’s Day for herself and her two mates.

Twilight, Rainbow Dash, and Fluttershy are going out to enjoy their first Hearts and Hooves Day as a triad. Twilight has everything planned down to the dot, from when they’ll arrive at the restaurant in Canterlot to exactly how many rose petals will be on the cloud-bed at her room in the palace when they get home (forty five, and only true rose petals, no stamens – three roses for each of them, one red, one yellow, one dyed blue.)

Then she finds out about one technicality that never even crossed her mind. La Romanetique, Canterlot’s premier high-class dining establishment, only serves couples on Hearts and Hooves Day.

The earth shall tremble. The heavens shall fall. Tartarus itself shall disgorge its most feared inmates… but Princess Twilight Sparkle and her marefriends shall dine tonight!

Twilight and Fluttershy watch a meteor shower together. Each makes a wish. But wishes don't come true, right?

Cover art by GAleckz. Edited by Cerulean Voice

Reading by Goombasa!

Twilight and Fluttershy go out on there very first date together. Fluttershy is just hoping to have a good time and Twilight, well, she wants everything to be just perfect for the both of them. Everything seems well, until their friends start joining in on their date. What will happen? Read on to find out. Twishy!!!

This story is a sequel to Magic of Love

Twilight is planning something big for her marefriend, and is keeping it a secret from everypony. In the process, Fluttershy starts to wonder if the unicorn's feelings are true. Meanwhile, an old enemy starts to plot her vengeance! Hope you enjoy!
Contains Femslash, you been warned! ^_^

Original pic belongs to IraeCoal, here's her dA, make sure to check her out, you won't regret it!

This story is a sequel to Love is Power I: Singing from the Heart

It's been one year since Twilight's and Fluttershy's lives changed. They have become inseparable. Some ponies even refer to them as 'the perfect couple'. However, after some time, Twilight begins acting... differently. Fluttershy fears Twilight may be reconsidering their relationship. Now she must find a way to save their falling romance before it crashes.
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Nyx is from Past Sins by Pen Stroke

Living in the Everfree Forest, an unknown creature has been bullying Fluttershy's animals. Twilight decides to help her tend to the wounded critters, since the yellow mare has been extremely overworked. The two come out of the experience a lot closer, but will it last? When they confront the beast, Twilight can't be so sure. [Twishy]

Hearts and Hooves Day is drawing near, and Twilight is determined to figure out this whole "love" business. She's prepared to dig through romance novels and travel through the Everfree Forest and back for answers. However, her research project keeps bringing her back to one particular pegasus, who's been doing a secret project of her own.

Cover art belongs to TopGull.

On what began as simply another day in the life of Twilight Sparkle, one near and dear to her becomes fairly ill. She calls on veterinarian Fluttershy for aid. Though she may not be prepared for what her friend has to say.

Note: I don't claim to be a doctor or a veterinarian.
I got the idea for this story last year when I had to put two of my cats to sleep.