I was only going to post it on twitter since I can't have another account here (I believe?) and I don't exactly want to mix Black/BrightRoom with BinkyRoom, but Derpi is still my fave place to upload and this one is safe, so I've decided to share here too!
~I should actually reread the rules and find out if I can create a third account or not, huh?~

This is a silly idea that was poking my head for days since I saw some bigger diaper drawings, all I could imagine is how Diamond Tiara would do ANYTHING to be the best, the number one, the bigger, doesn't matter the cost! (ᗒᗜᗕ)՛̵̖
I had a lot of fun drawing this, even though I feel guilty. I should be drawing more YCHs, ooof-