Northwestern University President Morton Schapiro said today he is "troubled and disappointed" by the live sex toy demonstration on campus last week and has launched an investigation. He released a statement saying the university is looking into the appropriateness of the demonstration, where about 100 students in a psychology class witnessed a naked woman being penetrated by a sex toy. NU president 'troubled' by sex toy demonstration on campus - chicagotribune.com The woman undressed and got on stage with her male partner, who used a device that looks like a machine-powered saw with a phallic object instead of a blade. Melvoin-Berg said the couple are exhibitionists who enjoy having people watch them have sex, and they were not paid for the demonstration. Jim Marcus said he and his fiancé hadnt planned to demonstrate the sex act at first, but decided to do so after the class watched a video on female orgasm that he thought was unrealistic. They already had brought the equipment to show as part of the discussion. It seems like a human sexuality class is a smart place to dispel some of the mistakes that we saw in the video, said Marcus, a musician who also teaches sex education. He said the demonstration with his fiancé, Faith Kroll, was different from a live sex show or pornography. I was more than happy to. We have fun with it, Kroll said. Im an exhibitionist. I enjoy the attention, being seen by other people. It was entertaining because there were a lot of curious minds, so that was cool. Marcus insisted that "what we did was not designed to titillate people, but to educate people, noting that the demonstration was accompanied by a discussion about safety and consent, for example. I hope (Bailey) doesnt take a lot of flak for this," Marcus said Wednesday night. "But I suspect he will."