Hi Nikita!
I am unable to get any more info through your link, but I would guess that the photographer has said "Okay, Gwen, I've got a secret: It's my copier." to get some kind of reaction from her so that she will have the correct expressions and body language, for the photoshoot. He either wants to make her laugh and look happy in the photos that he is taking, or he wants her to look sexy and "smolder".
I hope that helps!