"Hey you, forget that report, the toilets are broken but I need a shit so I'll have to use your mouth instead, I'd hate to have to find a replacement for you so I reccomend you accept quickly."

She stands up and walks around her desk so that she's standing just infront of you, looking down at you due to the height difference with a firm and commanding look on her face. She needs to shit and she is going to use your mouth whether you like it or not, "Now, get on your knees and open your mouth!"