Higher solution than below
After the lesson she teaches him how to beat the meat. She sits down on his thighs with spreaded legs and pulls out his dick. She starts stroking it with one and the other hand. He can see her slip under her skirt and under her hands his cock becomes so big and hard.She keeps on stroking it long, hard and slow to make sure he is about to cum. Then she tells him that he has to unload his cum onto her bare calf. He so he does - she is the teacher!