Maria Pavlova, Part 3

Maria Pavlova, Part 3 by cactusman

"I think I deserve some credit for the answer Tom eventually came up with, since I jokingly said that we should just have a woman look at his hard-on!"

"But Tom, as an engineer, used that not just as a joke, but as inspiration! Eventually he designed a system based on an infrared camera, which was hooked up to a computer. The computer locates the man's penis in the picture and uses its heat signature to measure the amount of blood trapped in the penis, which is what makes a man hard! It was a brilliant concept, but it took a lot of computer programming to make something that was reliable and fast enough for our purposes. But as a bonus, we got a real-time record of the experiment on video."