Marshmallows and Biceps

We were 'strugglin today, yo. It was technically warmer than the last run, but still chilllly! Christina busted out her new UnderArmor hat but was bundled up like a puffy marshmallow (which, BTW, we ate some later at the Chili cook off.) I mastered the kitchen timer and Christina punched my arm and commented on how hard it was. She claims she hit a button. I say it was my bulging bicep. Running makes for rock hard biceps, right? Meanwhile, I have quite the stretching routine b/c I like to be Safety Sally and prevent injury. I hope I'm not the turd that busts an ankle shuffling through the neighborhood...