So, er..... this exists:

The Sid/Andy Meme.  Yes that'd right as in Toy Story. 

hermette linked to it yesterday I think?  It has taken over my brain.  The fics talked about by snooter are amazing (Under the Table and Dreaming and the sequel To The Dogs or Whatever there's also a third one I haven't had the chance to read yet) 

I read them so late last night I haven't commented yet but I'm going to have to read them again as soon as I can anyways so I'll rectify that soon.

So I can't rec this fic or this pairing highly enough.  It's awesome. 

And I may have committed some comment fic in their honour.