To touch on what Nopozi said. Many guys would react to their girlfriends in bodysuits with excitement and arousal. Many guys would react to their girlfriends in skinsuits by screaming in horror and calling the cops. Especially if the person she got it from was also present. Oddly enough, there IS a certain episode of a hentai anime that shows the difference, but I can't recall the name. I just know that it didn't end well.