Kidnapped

The mane six have each settled down and started families. Celestia bevies the sprits of the Elements of Harmony have lived on in the children. Years later the kids are school age, cutie mark crusaders, and everything is well. Until, their parents mysteriously disappear. The kids decide to go on a quest to save their parents and, as they put it, the world.
Twilight Sparkle x Flash Sentry. Fluttershy x Discord. Rainbow Dash x Sorin'. Rarity x Fancy Pants. Pinkie Pie x OC. AppleJack x OC.