Have you ever heard about the time that some individuals had sex in an MRI machine, leading to a notable scientific discovery? Well, let’s dive into this intriguing story.
Dutch scientist Menko Victor ‘Pek’ van Andel was curious about what actually occurs in the human body during sex. So, he enlisted the help of fellow researcher Ida Sabelis and her partner Jupp to participate in an experiment inside an MRI machine. Now, fitting into that tight space was, let’s say, a bit challenging, but they managed to make it happen. What they found was quite surprising: the man’s penis bends to conform to the shape of the woman’s vaginal canal during intercourse.
This finding shook up some long-held beliefs, including those of Leonardo da Vinci, who thought of the penis as merely a straight cylinder during sex. However, there were other aspects of the experiment that left scientists scratching their heads.
According to some reports, Pek’s research continued from 1991 to 1999, involving eight couples and three single women who also had sex in the MRI machine—this time exclusively in the missionary position, unlike Ida and Jupp, who had spooned. Interestingly, all the men in these later sessions required Viagra to perform, given the rather unromantic setting of being cramped in an MRI machine. The findings eventually made their way into the British Medical Journal.
Aside from the intriguing penis curvature, another notable observation was that throughout all sessions, the women’s bladders filled up rapidly during sex. The reasoning behind this remains unclear, but Pek speculated that it might be an evolutionary mechanism to encourage urination post-intercourse, potentially helping to prevent urinary tract infections. However, he noted that this is just a theory and no definitive answer has surfaced.
He mentioned, “In every final scan, we could see a significantly full bladder, even though most women had used the restroom before the session.”
Ida herself remarked that the experience was far from romantic. Still, she felt it was quite a feat that only she and Jupp managed to have sex in the machine without Viagra, which she interpreted as a sign of their compatibility and happiness.
The study turned out to be quite successful overall. Initially, there were efforts to dismiss the experiments, yet attitudes shifted dramatically as interest in the results grew. Pek pointed out that those who once tried to impede the research later sought media attention or claimed involvement for their résumés. “Success has many fathers, obviously,” he commented.
So, while the research revealed fascinating insights, it seems that some mysteries of the human body remain unsolved—even if we know that certain things occur!
