By SailorSolaris - United States Twerking hard or hardly twerking? Today, I managed to pull a muscle at work. In my ass. While standing still. I still don't know how. FML I agree, your life sucks 3080 You deserved it 303 23 Comments Favorite Tweet Share SailorSolaris tells us more : Op here. Still don't know how it happened. Third time, too, though the other times were in my back. Anyone have a clue?