Group sex of students with a teacher

Two students really wanted to get a credit, so they decided to pay for it in kind. They came to the classroom and in front of the teacher pleased each other with cunnilingus, and then began to excitedly caress his red-hot fleshy penis with their mouths. After that, the lustful teacher began to take turns tearing them in all the narrow holes up to the very testicles, until they enjoyed the orgasm, and then gave them his penis at their disposal, so that they, after caressing his balls and dick, forced him to release hot sperm.