2 ponies are fight, FlutterShy cries out for them 2 stop, they don't. Pinkie Pie makes a party to make them stop, they jest start using the party-supplies in the fight. AppleJack & Rainbow Dash holds them back, but they jest buck them in and give AppleJack & Rainbow Dash nose-bleeds. Feed-up with this, Twilight Sparkle, Princess-of-Friendship, uses a spell to fuse the 2 fighting ponies together.

Will the spell make them stop fighting, or will this new pony jest kill him-self.

5010188
I remember a similar Harry Potter fic, between Lilly Evans and James Potter. I think it hadn't dealt with physical merging, but rather them being stuck hearing every thought the other had.

5010287 Oh...

p.s. What do you think the new pony is going 2 do ?

5010346
If it still had two minds, they would likely just carry on fighting... until they realized that they need to cooperate just to open their mouth to speak.
If it had a single mind, though, all the arguments would be instantly converted into confusion. And anguish. And pathos. And likely some self-loathing.

5010743 Mhm.. ok

1 mind) Would that pony jump off a brige ?

2 minds) Would that starve ?