SVPhilon/iStock via Getty Images While humans have butt cheeks, clothing, and a sense of modesty to prevent their buttholes from being on display all the time, cats just have tails (which they love to stick straight up in the air). As a result, you probably see your cat’s anus pretty often—and all that exposure might make you dwell on a certain distressing question: Is my cat’s foulest orifice brushing directly against my pillow, my kitchen counter, and every single other surface my cat perches on? According to sixth-grader Kaeden Griffin, the answer is probably no. As PopSugar reports, Griffin launched an innovative experiment to find out just how much contact a cat’s butthole actually has with its surroundings. First, he and his mom, Kerry, covered the buttholes of their two cats—one medium-haired and one short-haired—with red, nontoxic lipstick. They then directed the well-trained pets to sit on sheets of paper placed over different surfaces and perform a series of actions, including sitting still, lying down, and jumping.