Dear Princess Celestia,
Um, Twilight doesn't know I'm writing this, so please don't tell her. I just wanted to know, however, um... Is it possible for a Dragon and a Pony to, well, have foals? And what they would be like?
Your Faithful student's number one Assistant,
Spike
Dear Spike,
Biologically, it is impossible for two vastly different species to breed. It would create an infertile foal, thus being painful for the parent and also acting as some sort of worm, if you will. It will use the mother's resources, and of course be growing scales that a normal pony would not be able to handle.
If you were to use Sleipnir's Mirror, it would turn out as a draconian pony. A pony, with scales. I am not sure if Cutie Marks would be possible, though. Basically, nothing drastic would be in appearance as far as relative odd goes. Of course, there would be very confused ponies.
So in conclusion, you will not be able to have foals with a pony. Our rising sciences may be able to biologically use your genetic code with another pony to create a technical pony-dragon foal. Seeing as you will be living for thousands of years, this is obviously going to happen.
Princess Celestia.
Sleipnir's Mirror? Is that a reference to "My Little Mommies?"
Interesting given how often dragons are depicted as successfully mating with pretty much any creature one might name.
Hm... I guess we can post potential question ideas from some of the previous comments.
What if I was actually an agent of a cult loyal to Nightmare Moon and had worked to aid her successful return?
Heh, can't help but ponder than one.
What if Discord was actually my father? also comes to mind. I mean he is chaos after all. Not like he has to follow the flow of time or even cause and effect.
What if Ditzy Doo/Derpy Hooves really was somehow Commander Hurricane from the founding of Equestria preserved through magic or brought back through reincarnation?
What if you were the tyrannical head of authoritarian government?
What if we had elections on a regular basis?
What if war broke out in between us and one of our neighboring countries?
What if Equestria had religions?
Do You like bananas?
What if we were just characters in a play?
what if discord was killed in your first battle against him?
What if Fluttershy was never born?
What if we were just a TV show being watched by the "humans" you mentioned before?
What if you were sending me "What if" letters and sent me a letter about me sending you "What if" letters?
What if you were yellow?
What if Derpy was actually our leader and you were just a figurehead?
What if a cult of chicken worshippers abducted Scootaloo?
What if every prior "What if" were to happen? Barring any mutually exclusive events.
What if I became corrupted like Sombra? (He was an ordinary unicorn whose heart was tainted by darkness)
What if you became evil and Luna banished you? (Lunaverse)
What if I suddenly started singing at random and couldn't stop?
What if I really could turn a mare into a stallion or an adult pony into a foal?
What if I became a Princess like you, Luna, and Cadence? (Foreshadowing the Season finale)
What if my friends had never found out about the Alicorn Amulet?
What if I couldn't use magic anymore?
Can anything actually hurt Discord?
What if Chrysalis returned?
What if I suddenly became a mother? (That's Mama Twilight to you Spike)
Dear Princess Celestia.
Who have you banged?
-Cloud Kicker
2014708 "Yes, that is true."
Still have my list...
hmmm...
what if... FlutterShy was erraidiated by magic and would turn into a powerful near unstopable green rage monster?
SHRULK SMASH!
What would happen if Shining Armor turned traitorous and did what Princess Luna did. How could Twilight do what Celestia did to her own sibling?
Suggestions(!):
“What if [Twilight] died?”
“What if a war breaks out in Equestria?”
“What if something happened to you?”
By the way, great… story(?). Collection of letters. Whatever.
Dear Princess Celestia
What if Cadance had a foal, she never told you about. And 16 years later, it found it's way to the crystal empire. How mad would you be
Sir and/or madame, you forget the roots of a certain me. I am a draconequuis, which is short for "draconic-equine" or something along those lines. Anyway, this means that I am half-dragon and half-pony despite all my other parts. So if a dragon and a pony got freaky, a new source of glorious Chaos would be born! Just saying.