The Wake Forest Institute for Regenerative Medicine in Winston-Salem has successfully engineered the first six lab-grown human penises, the scientists revealed over the weekend — and they're just waiting for FDA approval to move forward with what they call "in-man" testing.
In the meantime, the engineered penises are being put through their paces in the lab — courtesy of machines that squash, twist and stretch the organs, and pump them full of fluid to test their erections.