What if your virgin boyfriend's Grandparents just deflowered him? How do you respond? Read on to learn how to save your virginity. Is this a good idea? This video will give you the inside scoop. The most common reason for deflowering a virgin is when his parents aren't around. Your boyfriend is probably not happy to see his Grandparents, but you can help make him happier by giving him a surprise that he didn't even know existed..