A young American college student was studying space physics in the classroom when her strict Russian teacher decided to give her a practical lesson. The girl was surprised by the sudden turn of events, but she was ready for such an occasion. The teacher quickly took off her uniform and began to demonstrate the principles of friction, pushing her pussy into the guy's hard cock.The guy was not at all against such a pleasant surprise, on the contrary, he was very excited about it. The teacher's pussy expertly sucked his cock, making the boy moan with pleasure. But the teacher was not satisfied with one pleasure and called her two friends.Girls hurriedly stripped and began to suck the guy's cock together. The boy was delighted by such a turn of events and decided to fuck all three girls at once. The teacher and her friends were able to satisfy the guy's desires and quench his thirst. The guy got an unforgettable lesson in physics and a great experience.