Fluttershy visits Rarity as she has done so many times before, but with her mind in another place due to her having read a particularly heartwarming romance novel, the usually platonic event takes an unexpected twist.
One of the scenes inspired by this adorable little drawing: http://mimblex.deviantart.com/art/Drinks-at-Rarity-s-309440439
The story started off with this series of pictures drawn by myself: http://philosopher-01.deviantart.com/#/d5g6ifg
Just a little one-shot I threw together to accompany the pics from above.
Added hot links to the pics at their respective scenes for fun!