Rihanna Black learns geometry with her teacher's big dick

Rihanna Black sits down for a private geometry lesson, stuck on measuring an 18 cm segment. Her teacher tries explaining it with diagrams, but nothing clicks until he decides there is only one practical way to show her the measurement: pulling his big dick out of his pants right there in the lesson. At first Rihanna is caught off guard, staring at the demonstration with wide eyes, but she quickly warms to this new teaching method. The role play setup moves from confusion to a hands-on blowjob session as she decides this is a far better way to study geometry than any textbook. It is a tidy little scene built around one simple joke carried all the way through.