Leni, a girl from his class

Soon, Walter and his son Peter were setting up their booth at the Expo. As the doors finally opened, an attractive young blonde woman in a swimsuit struck a pose next to them.

"Son, what have you gotten me into?" Walter grumbled, his deep voice resonating with a mix of amusement and exasperation. "I thought we were here to showcase my groundbreaking research, not to put on a show."

Peter grinned at him. "Dad, you look amazing! Really great! People are going to love it!"

Walter shot Peter a stern look. "Great? This is a science expo, not a pageant. I should be discussing my research, not posing like a model. And who exactly is this young lady?"

"That's Leni, Dad. She's 18 and a classmate. I've told you about her before," Peter replied.

Just then, Walter pondered for a bit... And just then he managed to count 1 and 1 together.

"Oh, really? Great, just great! This is not a classmate but a lawsuit waiting to happen!" the fake 'Leni' finally mused and turned around to take care of business.

Unfortunately this caused Peter's attention to drift to Leni's fascinating assets, which made him think about what sort of scenario he wanted to see with the real one for a very long time actually...