“Now now Cozy. You’ll like it here in my mane. That way I can keep a close eye on you. Would you rather spend the rest of eternity in stone? Or perhaps you want me to leave you in Tartaros again?”
“I want my mommy…”
“Well, good news. I’m going to be your ‘mommy’ now. And I’m going to raise you to become a more decent mare.”
Its a thing in BBBHueys comics, Luna/Nightmare Moon would eat a pony and transfer them to her mane