This of course in reference that Stitch IS experiment 626.
And sometimes they have accidents... and need to be put in diapers. And easy-access onesies for changies.
(I love how this turned out, also I took special care to get everything right this time. The sketch was literally based off of a snuggling plushie I have of Stitch that I put a diaper on. So, apologies for any missed details there :P)
Poor guy, he can pout all he wants but those euphoria levels are off the charts~