Something sex related

Something sex related: A man told me about how in college he participated in a study of hormones during sex. He would masturbate to climax in front of the professor conducting the study while the professor collected blood samples using a continuous blood draw. The professor would fill up tiny vials with the guy's blood and hand them to a couple of assistants behind a curtain to be marked with the sample number and time while the professor collected another sample. The guy did 10 of these sessions so the professor could get enough data to compare the hormone levels between sessions and compare those levels against other study participants.

After that first 10 sessions the professor wanted to check hormone levels while the prostrate was massaged with a vibrator to see if that changed anything. The professor would slide a vibrator up the guy's ass and start collecting blood samples as the guy masturbated to climax. The guy did 5 of these sessions with one of them being a vibrator on prostrate induced multi-climax.

The guy never did learn the results of the study.