Standing on the edge of a settlement, being told to "look menacing" with a close friend leads to a lot of boredom and dumb questions. Sometimes those questions are... intimate. Sometimes they're not really a joke but are much easier to ask as a joke. Sometimes your work-friend starts being something more then just a friend.
Is it the way they look at you, as they lean against you, and grip your cock so tightly? Or is it that sound they make when you manage to press your thumb against the perfect spot under the crown of their cockhead? These feelings are too complicated and new to put into words besides exciting.