Knuckles blushed deeply and wanted to shrink away in the moment. But all he could do was groan and whine a little as his body pushed the rest out into the back of his crinkly padding.

Once he was done Sally shook her head in disappointment and helped him up before taking him to his changing table

Feeling the load making his diaper sag under his bottom he hung his head in embarrassment and didn't say anything as Sally took him into the nursery

"So, you were holding it in the whole time huh?" she asked as she lied him down

"Y-yeah..." He meekly replied, blushing and looking away as he felt the dirty diaper squish under him and he was laid there before Sally with the thick padding spreading his legs apart. "I-I just wanted to use the toilet without any help..."

She sighed "Knuckles, I wasn't there to help, I was just there to put your diaper back on afterwards, and wouldn't you prefer to use a toilet instead of your padding right now?" she asked as she untaped his diaper

"That's why I tried to run to the toilet just now!" He replied, visibly distraught as Sally untaped the diaper which only worsened the redness on his muzzle. "I don't want to use a diaper at all!"

"THen why didn't you just go when I put you on the toilet?" she asked as she lifted his legs and started wiping him clean

"Because it was humiliating!" He exclaimed, as if currently having a dirty diaper change right now wasn't more so.

SHe rolls her eyes "And you find this better?" she asked as she cleaned him up and threw out the used diaper