Rainbow Dash has caught a cold after flying in some particularly bad weather, and Fluttershy insists that she stay with her until she recovers.

Dash starts to get a little too comfortable around the house, and Fluttershy doesn't exactly seem to mind...

A little thing I wrote a long time ago and finally decided to share here!
Weight Gain story with a little FlutterDash. Tagged as 'Sex' to be on the safe side.

Applejack gets a new super fertiliser to help her crops grow bigger and better than ever. Unfortunately, it works a little too well, as she, Fluttershy, and Tree Hugger soon find out...

Contains: Fat ponies, gluttony, messy eating, weight gain.

Done as part of a trade with WordyNotes on dA.

[NOTE] Please do not downvote the fanfic solely based on the fat fetish. If this is not your interest, do not read!
Rainbow Dash has become enticed by Pinkie Pie's recent behaviour - backing into her basement for hours, emerging with an even flabbier stomach every time. She finds herself staring in awe, intrigued by her new attraction to Pinkie.
Out of uncontrolled temptation, Dash creeps down to Sugarcube Corner at night, before being greeted by the beautiful bulging pink pony. Pinkie drags her, strapping her into her gluttonous fate.
Ultimately, from cupcakes to gateaux, cheesecakes to cheese pastries, Dash is forced to overindulge until the dessert store is deserted. Pinkie then washes it all down with a calorific milkshake, washing Dash's flying career away in the process. But Dash, finding her new enjoyment in the fetish, submits with satisfaction to Pinkie's plans...

Rainbow Dash has always had her head in the clouds, physically, but is always brought back to Equestria by the no nonsense common sense attitude of her best friend, Applejack. This story is an AppleDash fic, and takes place after the Season 2 finale of MLP:FiM.

This is my first fanfic ever, so feedback is most welcome!
(image by Tartii at DeviantArt seen here: http://tartii.deviantart.com/art/Ponytail-291577879)
*This is Book 1 of the LotusVerse.

There is a sequel to this book: Saddlebags, Sun, and On The Run (Book 2)

Applejack is an awesome, hard-working and totally cute friend, and that's cool. But she's also totally oblivious to Rainbow Dash's advances. With just one more day before Hearth's Warming, the pegasus is determined to get through to her crush... whatever it takes!