Nevermind the Voyeur

They're a great looking couple, he's tall handsome man and she's an incredibly sultry woman.
It was a hot summer day and they had to do some urgent paperwork in the city council. With hundreds of other people - it was chaos.
That morning she'd actually wanted to go to the beach, so she'd worn tight T-shirt without a bra and a fairly short skirt... all the other men and women in the huge hall, looked at her. I guess, every second person was thinking about her, putting hands on her breasts, under her skirt... and he, her boyfriend, had the same ideas.
"Hey, let's go somewhere for a quick one, I can't stand it any more!" he whispered in her ear.
Of course, she had the same idea in her mind.
They went to the cleaning supply office and starting kissing, but a cleaner came and threw them out, screaming.
Then they went to the archive room, it was an empty, damp room with lot of tall shelves. They took one huge old desk and started to fuck...
Suddenly they heard a sound, a lot of books fell down from a shelf, together with a young student. It was obvious that he was a voyeur... and had been masturbating to their sordid scene.
They yelled at him and threw him out, to continue where they left off. Secretly, both of them kind of wished she hadn't left...