Which goes to show how stiff models can ruin a shoot.
These guys have no problem with playing the fool, and so not looking self-conscious works to the benefit of the pictures, because the viewer is left wondering what was going on, and only if you are privy to the backstory can you know the why and the how, which is usually the creative shooter's intention: provide a bit of mystery with no obvious answers - keep 'em guessing, in other words.
Not a lot of genres allow that. Street should be one, but being mostly outwith the photographer's control, usually fails, resulting in a record shot that tells the viewer nothing more than this was this then, but which raises neither questions nor interest about that fact.
Acting is far easier!