Something I've been contemplating and still am. Thought I would get a bit of feedback on it.
Years ago, I created a next gen OC, Little Green Apple, who is the daughter of Soarin and Applejack (stories involving her can be found here and here for those interested, and a picture below)
Maybe when... uh... if...
If there's the possiblity that your sister might end up, uh, pregnant... her fault, really.
Well, maybe make sure that she's not in one of her pony phases.
Because... uh.
Human + Pony = Well...
Sis:
Bro: Don't look at me like that.
I love that humanized Izzy. So cute!