A matelot stops to visit his mate who is laid up with a broken leg. His friend says, "My feet are cold mate. Can you go and get me my slippers from upstairs please?" The guy goes upstairs, and there are his mate's gorgeous twin 18 year old daughters. "Hi, girls. Your dad sent me up here to fuck your brains out." The first daughter says, "That's not true!" He says, "I'll prove it." He shouts down the stairs, "Both of them?" His mate yells back, "Of course, both of them!"