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Original Description:
 
As Celestia was about to get into bed following the exciting day of Twilight ascending, she suddenly received a letter from said Alicorn. Wondering what Twilight could want so shortly after her visit Celestia read the letter and as she did her eyes widened in shock. She had completely forgotten to warn Twilight about this in all the excitement following her ascension.
 
Quickly summoning both Luna and Cadance, Celestia teleported them all to Twilight’s home. Arriving they found Twilight freaking out in her room with her pyjamas having burst open from her breasts having grown significantly as well as milk all over the floor.
 
Cadance was the first to go forward and comfort Twilight and to reassure her that everything was alright. Celestia then stepped forward and apologised to Twilight for not warning her and explaining that all Alicorn’s are naturally have extremely large breasts as well as lactate. As she finished explaining she started to remove her glamour on her breasts causing them to slowly expand. Luna not having the patience allowed hers to grow to there full size instantly, destroying her top in the process.
 
While Cadance like Celestia allowed her breasts to grow more slowly up to her full size so as not to destroy her nightgown, Celestia was telling Luna off for being so blunt.
 
It looks like Twilight is going to have to get used to a lot more than just a new pair of wings. It’s a good thing she has her fellow princess’s to help her through it now.