Trigger Warning: A displaced fanfiction

A stray bullet, that's all it took for Christopher to get ripped from the life he once knew, and get thrust into a new life as the Big Daddy from Bioshock 2. Upon finding two fillies being chased by a manticore, Christopher was in for the biggest challenge of his new life.

Parenthood.

Would you kindly explain how to take care of two alicorns barely in control of their power?

Hi, my name is Kaiyo, but you can call me Delta. In fact, I would even go so far as to say don't call me Kaiyo. I don't know why I stopped using my name, but now... Delta just feels like me. Anyway, this all started one day when my sister and I went to a convention, and I went as Subject Delta while my sister went as Merry Nightmare.
I had a feeling about that guy, sold me a jar of Adam with the infinity sign on it and told me all of the stuff that'll come with it, but I ignored it. Now, now I'm an adoptive father for a strange creature in a world that feels familiar, and I'm also turned into Subject Delta.