Elderly sex isn't just for aged Japanese porn stars anymore! A new study from the University of Chicago says that 75 percent of American men and 50 percent of American women between the ages of 75 and 85 are still looking to bump uglies. That's right, your grandparents and/or parents are still doin' it. Don't be grossed out! Just hope you live long enough to worry about getting caught shagging by your grandkids. [NY Post]