Just two naked siblings, glaring at each other in the snow. No big deal.
He was so not having this conversation naked.
"Stay here," he barked, and turned his back to stalk to the garage. He hoped Allison was asleep. He punched the code into the garage door and stepped inside, returning a moment later with a blanket tied around his hips and another, that he dumped unceremoniously on his sister, because yeah. Siblings.
Once she was covered, he crossed his arms over his chest, defiantly, and shifted his weight from one foot to the other in the snow.