If I told her to do that ad, she would throw a pot of hot coffee in my face.
Immediate justice. No need for the Gubmint or lawsuits.
Then you could countersue her for assault and battery.
What if she was 25 and a single mother and really really really really needed that job?
Should you be exempt from sexual harassment lawsuits simply because you are trying to get some advertising for your company and your employee is really hot and really needs the job and "sex sells"?
You don't see where I'm going with this, do you?