Image imported from derpibooru 
Original Description:
 
Zecora took no hesitation to take over from Paddy and play the caregiver/alchemist role. She changes Paddy’s (regressed earth foal) diaper and is in mom mode, Shatter helps out but…She is set off guard when Zecora changed her diaper too but more like, replacing the wet one with a clean diaper with a spell. It looks like Zecora will probably go overboard by the look of things and Shatter isn’t fond of it already, she only regressed Paddy so that Shatter didn’t have to get babbed all the time, whelp, it looks like she can’t fully run away from it now that Paddy transferred her powers to Zecora.
 
“This is quite the interesting exchange, with I being the one to now give the diaper changes. Paddy seemed to get a brain drain at the same time as getting de aged, I already like this new arrangement.”
 
This is probably what Zecora said while changing Paddy’s diaper.
 
A follow up from this: https://derpibooru.org/images/2859334?q=artist%3Alynnthenerdkitty