To protect everyone involved, this may or may not have happened ;)

Was working interstate at a new location for a few weeks. I didn't know the area well enough and got caught up with traffic and lack of parking on my first day, so was late. No major issue but I knew I would have to come in earlier to avoid that in future. I started coming in at 630 because I am an early riser and my contract had me doing longer hours than the workers. I could be early and still in the office before everyone left at the end of the day.

Across the alley was another older office building that I noticed I could see clearly into an office, just above the desk area. On my first day I watched this older male manager hold meetings and so on. Nothing interesting.

On my second day, just before 7am, I watched this much younger woman appear in his office and undo her blouse before going to town on this guy. Kneeling behind his desk, head bobbing like a chicken eating feed. 5 mins later he must have been done as she wipes him down and they both straighten themselves up.

I then proceeded to notice her coming in and out of his office all day for meetings so I assume it was his secretary or assistant. Nothing else of that nature happened again throughout the day.

Next day, same thing. And it carried on every day of my 3 week contract.