Suspensory Jockstrap
Student Scientist
It's a totally normal reaction to often get a big hard boner when you're wearing a jockstrap. Watching this video could also potentially be a factor in causing your penis to inflate and induce a solid erection to occur. I'm currently doing a science project on this topic, and I would appreciate knowing if you had any responses related to experiencing any excessive penile erectile activity while viewing this. Please respond in a comment below with a detailed description regarding your own penile erectile activity during your viewing of this demonstration. Do it for science!