This Video Shows What Sex Looks Like Inside An MRI Scanner

A new NSFW video featuring footage from multiple MRI scans affords a remarkable glimpse inside human bodies as they engage in intimate activities ranging from a French kiss to, yes, full-bore coitus. MRI scanners create still and, in this case, moving images with the help of strong magnetic fields that interact with protons inside our bodies.

And as you can see in the video below, those interactions can tell us a lot about interactions of our own.