Surely as the leaves must fall, the dick has its autumnal transition. Here’s everything you need to know about cold-weather shrinkage — There can be no light without darkness; there can be no happiness without sadness. And so it only follows that there can be no summer penis without a winter penis. Just as warm weather causes the summer penis to emerge swollen, relaxed, excitable and full of get-up-and-go, the chilly months…