This story would be improved greatly by changing the perspective to a 1st person narrative. IMO- the inner conflict needs more development. The title indicates that it's routine. but that means the author needs to develop a reason for writing the narrative.
I just continue to fuss as tears start to slip down my cheeks as i struggle to calm down. Sarah huffs as she tries to say "mommy this isn't fair i don't want the diaper i want my pull ups and why can't someone else deal with that baby your my mommy not her mommy too" she says this as she wasn't happy about this at all.
Kayla was fidgeting
“No it’s just look I-i really need to go!” She was very desperate now practically doing the potty dance.. Before she can make it she loses the potty battle! Could it be with her three previous accident her body is giving way to her new babyhood that’s calling!
“Look what you made me do!” She says stomping her feet like a naughty little girl who isn’t getting a extra cookie
"Sarah are we being fussy? Do you need time out in the playpen along with this diaper for you accidents? Now its not sharing me. You will both get the same attention. Plus shes a baby honey." I tape the thick diaper around the 10 year old. Then I hush at you.
"Its ok baby mommy is coming. Are those mean big girl thoughts hurting your little head?"
Kayla slept on the couch peacefully sucking her new pacifer.. As she slept she wet her diaper her body was giving up to her new babyhoood.. Would her new mommy push her even further into babyhood?