I was wondering if there are any stories out there that involve either Sam/Jared/Jensen/Dean whom may have a back problem or like, something that they have to get therapy for? That involves stretching and working the muscles (and we all know unused muscles hurt x.x). And it's either Jared/Jensen helping Jared/Jensen, or even Sam/Dean helping Sam/Dean to stretch them?

I've already read You May Have To Crawl... by 

deviant_dev