Twilight has grown into a fine young mare who has done and seen much during her time in Ponyville. Celestia believes it's time for her to ascend into an alicorn... but the method in doing so isn't exactly, normal.

Note this is purely a one-shot clop and not to be taken seriously.
Contains: Princest, futa, soft cock vore, unbirthing, mild transformation(gaining wings and such) incest, gender bending, and birthing. No death, cumification or mind altering is in this fic, just a kinky take on how alicorns ascend.

Not sure why I wrote this but it happened, like or hate it it's up to you.