Spike asks Rarity to go with him to the Canterlot Dance, but she turns him down, because she already has a date. However, Fluttershy comes and sees this, so she tries to cheer him up by going to the dance with him...
In the first place, they were going as friends, but they soon discover more than that...

I do not know who made this cover art, but I give credit to them. If they want me to take it down, I can do that. I repeat, I did NOT make this cover art.