The third man masturbates as he watches.
Popular with both are the so-called glory holes — a wall where you can insert various parts of your body for the enjoyment of those on the other side.
All you have to do is check it out and find something that strikes your fancy, you will not be disappointed when you see the huge amount of pron material available on this website.
Then you can go inside.
The door swings shut.
This site is rated with RTA label.