9587331 If I had to guess. It was probably to mate with Spike. Hence why it was mentioned that her motherly feelings, for Spike was a bit contradictory to what they had to do.
And, most likey it has something to do with the near extinction of his Clan. That based on context they personally had nothing to do with, but maybe an ancestor of theirs did... Thus the promise was made, as one of the my kids will marry your kids scenarios.
However that doesn't explain the part of how he could choose his lovers, and they can't. I mean we know that harems exist in this world. So maybe they meant it in that way...
He's going to have to mate with and marry the sisters due to the promise. But, he could still pursue his love for the element bearers. Anyway that's my theory, we'll find out for sure next chapter.
Okay the wait time is fine for this as long as it isn't like half a year or something like that. Still came to look at this for one thing and got something entirely more epic instead. The descriptions both on the story's page and how ridiculous the proportions given to the girls were gave the feeling of one type of story and instead got a rich story experience with really competent + well balanced writing. Good trade off.
9635542 thanks, to be honest this was our first majorly collaborative story together, along with a few writers as well. But I'm happy to know we've done such a wonderful impression on everyone here We're working on a short chapter but we're busy with a couple other stories in the near future we want to release as well so be patient. And after that will be a another chapter that will make some great revelations about where Spike came from And some hot clop too.
9792116 We're almost done with chapter 3 we're just editing some dialogue on a character we forgot about , and are starting chapter 4 very soon as well.
No problem. As long as this amazing story gets updated, take your time.
Wow surprised it came back I thought this story had been given the death penalty. Glad to see the second installment.
9584353
your profile picture threw me for a loop, I'm like "I didn't post a comment on this story. Right?" lol
9584700
Lol no problem
Hey, it got posted! Good stuff.
Didn't expect this to end up on my watch list and yet here it is. Very curious what happens next! Also, I very much enjoy these long chapters.
It was worth the wait. Keep up the great work guys
Oh, I am keeping up with the series!
WOW! What did they promise and who did they make that promise to? And what did they do that required a promise to be made?
9587331
If I had to guess. It was probably to mate with Spike. Hence why it was mentioned that her motherly feelings, for Spike was a bit contradictory to what they had to do.
And, most likey it has something to do with the near extinction of his Clan. That based on context they personally had nothing to do with, but maybe an ancestor of theirs did... Thus the promise was made, as one of the my kids will marry your kids scenarios.
However that doesn't explain the part of how he could choose his lovers, and they can't. I mean we know that harems exist in this world. So maybe they meant it in that way...
He's going to have to mate with and marry the sisters due to the promise. But, he could still pursue his love for the element bearers. Anyway that's my theory, we'll find out for sure next chapter.
Looking forward to next chapter. Hopefully everything is revealed
Okay the wait time is fine for this as long as it isn't like half a year or something like that. Still came to look at this for one thing and got something entirely more epic instead. The descriptions both on the story's page and how ridiculous the proportions given to the girls were gave the feeling of one type of story and instead got a rich story experience with really competent + well balanced writing. Good trade off.
9635542
We're working on a short chapter but we're busy with a couple other stories in the near future we want to release as well so be patient. And after that will be a another chapter that will make some great revelations about where Spike came from
And some hot clop too. 
thanks, to be honest this was our first majorly collaborative story together, along with a few writers as well. But I'm happy to know we've done such a wonderful impression on everyone here
The cool thing is that this was updated on my birthday and I just noticed it.
Saving and waiting for your godlike chapters m8. The anticipation is KILLING ME
Are you going to continue the story? I say it because it has potential.
Will Ember appear in the story? she would be a good addition to soothe Spike.
When is the next update?
9763489
Seconded
9765137
Thirded. Also I hope that Sunset Shimmer and Gilda be a part of the Harem
do you need any help
I like this story it's really good can't wait for more chapters.
Next chapter?
9792116
, and are starting chapter 4 very soon as well. 
We're almost done with chapter 3 we're just editing some dialogue on a character we forgot about
I am fucking impressed. Great story
First dang those nightmares are brutal. Second you forgot Zecora he had feelings for her to. I hope Ember,Smolder and the CMC join his harem.