Private Lesson

Imagine your personal space is your classroom where a late night lesson is just about to begin. One partner plays the role of an obedient student, the other takes on the commanding teacher character. The teacher can initiate the roleplay, heading over with a serious demeanor and laying out the course work for the night.
As the session progresses, the scent of an impending exam hovers in the air. The student is understandably nervous, seeking extra guidance from the strict teacher. Perhaps some practical lessons are in order, subjects that are not found in the textbooks. And as the night stretches on, the strict pretenses start to fade, giving way to more intimate tutorials.
As the climax of the lesson nears, it's time for an oral examination. Remember, it's all about maintaining the roleplay to ensure the scenario doesn't break. It's all in the name of education. In the end, perhaps the teacher learns a lesson or two from the eager student.

Since this is a student-teacher roleplay, setting up the mood and environment will aid in getting into character. You need to find a desk or a table which will serve as the ‘classroom’. Arrange some makeshift study materials — books, stationery, and papers.
Choose your costumes carefully. The teacher could go for a formal attire with the student dressing in a slightly naught uniform. Keep in mind the comfort and fun in your setup.
Lastly, be clear about your boundaries before you begin. Discuss with your partner the dos and don’ts that you both need to respect. Remember, it is equally important for both parties to have fun and enjoy the roleplay.

Remember that the key to a successful roleplay is communication. Make sure to discuss every detail with your partner, including what turns you on and the things you'd rather avoid. Revealing your secret fantasies can make the roleplay even better, provided that both parties are comfortable with it.
Stay in character! Remember, you're playing roles and it's important not to break character. However, always prioritize consent and ensure your partner is comfortable. A safety word can be beneficial for this type of roleplay.
Finally, enjoy the process. The roleplay is intended to be fun and exciting, not stressful. Your role's lines don't have to be perfect, laugh and just go with the flow of your play.