M & M are friends.  If, by “friends”, you mean not friends at all, but two people who are mostly pleasant to each other at work. Or something like that.

In the words of FDR: We have nothing to fear but the fears we invent in our heads, which is most fears. That was the quote, right? It’s close enough, and M&M have the rest....
America’s favorite shared cultural experience isn’t movies, concerts or sports. It’s free and fun, as long as you use your inside voice....
M & M bravely venture forth into the chilling world of the workplace bathroom....