Twilight didn't choose everlasting life as an Alicorn Princess. She wouldn't live an everlasting life either, but because of something odd that happens once the mystery box from the Tree of Harmony opens. She ends up living a much longer life than she thought she would. She wasn't really too upset about this, but she didn't fully appreciate what being an Alicorn Princess/goddess meant at the time.
Oh well... why fight the inevitable...? She does end up going into the 'Everlasting Adventure' in the end, but makes some new friends on the way. She is also surprised when the Reaper comes for her, and turns out to be a rather likable bony fellow. Also this boat man seems to be a jovial sort as well.
... maybe the afterlife isn't so bad after all. :)
MLP X Discworld!
I feel I must say this is merely a light crossover with Discworld. I included some other elements that I feel would fit in with the Dsicworld zaniness of my own design. I also apologize if my characterization of Death isn't spot on. I haven't read all 30 some odd books of the series.
(This is my first one-shot! 0_o and completed story as a result.)
(( it may be 'cliche' but this was some idea I came up with that was half influenced by alcohol... enjoy everypony!))