Very very good stuff :D I see why this was hard to write but you executed it perfectly.

It was worth the wait. :)

Loved it! The original was plenty sexy and fun, but you really made this installment your own, and I felt invested in Rainbow giving Twilight a much-needed lesson as much as the ensuing hugeness.

just finished reading... and love it. I didn't expect such scale, such size. I know it's hard but I hope in next chapter will be more description from perspective of normal size pony. It was amazing to read how their growth change the landscape and interaction between normal pony and giant one. Maybe new character trying to survive between two giant bodys?

One of the best sequel fics I ever read. The build up to chapter 2 was great, and sweet jesus this entire chapter is perfect. The characterization is perfect, the buildup, Twilight resisting RD's goading, her eventual caving and relishing of her capabilities, achievements and then taking Dash was all so good! The reminders of their growing size to the world around them was spot on, the cover art of the fic the perfect reference point to just how huge the two eventually became. The competitive aspect of the two is also hugely enjoying to read. Their dialogue is so spot on between them, and the subtle hitches and stops in RDs especially seals the deal on that front.
The epilogue is a turn from what I expected. A sexy twist on an otherwise epic moment in the show, but still retaining some of the seriousness and gravitas the moment had for the characters. I greatly enjoyed the buildup there before the cat was finally let out the bag. It's not often you get to read an intense action scene melded with something erotic and this totally worked.
I only wish I had finished the whole thing at an earlier date. Favorited and saved for future readings. 10/10