Mutual masturbation with your student

You are studying at the table and the topic seems to be mutual masturbation. Your shy student asks you to tell her what that is and she is intrigued. She wants to see you masturbate first, so you take out your cock and begin to rub it. Annabelle likes what she sees, so she is quick to join in on the fun. The book says that she should stroke her clitoris, and she does. You can see how turned on she is and then she asks if she can do it for you. Her hand reaches toward your hard dick and she grabs on, stroking it for you. She moves her hand up and down at a faster pace. Will you let her taste your cum? She jerks you to completion and then has a taste of your hot load.