when you are done with her, and she is ready to leave the clandestine meeting and go back to him, or
when you are done with her, and she is ready to leave the clandestine meeting and go back to him, or to class or the office, fully dressed and recomposed, you get a kick out of making her suck you one more time (which she will) so that you can dump one last load in her pretty mouth and she walks away with a taste of you -- source link