You talk to you about explicit topics, and then you cheat. When she gets off work, she will add the clock until she gets off work. At the end of half an hour, you can ask her if she can add a private clock to you after work and where to add it.

Or you can wait for her 1 hour or more, and then go to see her after work. The first half of JS takes 70-90 minutes, and then you start asking her if it is possible to add a private clock to you after half an hour.