There is a time and place for everything
and when you're acting professionally as a commercial pilot, with dozens or even hundreds of lives in your hands, it is NOT the time to be perusing pornograpic materials and amusing others...nor to be leaving the materials behind to cause any discomfort or distraction whatsoever for other pilots with the same weighty responsibility.
Wait until you're off-duty and away from the airport then go ahead and indulge in whatever the heck turns you on...