Searching for a fic!

[chlo� christie nicol]

Hello! I'm looking for a fic i read a while ago. It was posted on fanfiction.net i believe, and what i remember from it is that House and Wilson are a couple (I think) and House makes Chase take part in a project that turns him into a child and it's to see if it will help with House's leg pain.
(In it, kid-Chase cries about not getting a toy dog).
There is also a squeal to it where House takes part in the project when it was successful for Chase.
If anyone knows the link to this then I would be forever in your favour!