Pinkie Pie couldn't have a more perfect life. Pumpkin and Pound Cake are with her half the day. When she doesn't have them, she's either working in a place she loves, or with her friends. She wouldn't change anything about it for the world. Fate, however, had a different plan in mind: Her employers and close friends Carrot and Cup Cake die in a gas explosion caused by one of the ovens.
The children are now left as orphans, and are in danger of being separated into foster care. However, Pinkie takes it upon herself to adopt them to keep them together. Now, she'll be taking care of the babies 24/7- with the help of her friends and the rest of Ponyville, of course- willing to sacrifice everything in order to preserve the lives of the two unlucky souls who lost their parents.

I'm contemplating PinkieJack PinkieXRoseluck shipping