Had a math teacher in high school who was a gorgeous, big-titted blonde. She was was short, maybe 5-4, and wore short skirts.
At times we had to go up and write math problems on the board for the whole class. Every guy would write their problem at the very top of the chalkboard and make a mistake on purpose.
When she would correct the mistake, she had to reach way up there to do it and her skirt rose accordingly. And about 10 guys would drop their pencils on the floor and have to lean down to pick them up and try to catch a glimpse of what the skirt wasn't covering anymore.