Here's the latest in the tag penile plethysmograph

FOF #2166 – Sexy Science

We love to talk about scientific studies that examine gay men, but we seldom if ever get a chance to actually talk the people who do the research.

Well, today that’s changing with our guest, Teddy Semon, a human sexuality researcher at Northwestern University, who tries to figure out what turns men on by hooking their dicks up to a machine which records how aroused they are by erotic stimulus, like porn.