“Um,” said Cassie, scrubbing her hands over her face as she tried to cool down her overheated cheeks. “So, you’ve, uh... you’ve... had a sex?” When would the Doctor ever have time for sex? Cassie tried to imagine the Doctor slowing down long enough for it. The doctor underneath some faceless body rutting into her. The Doctor being the Doctor, she’d probably be talking a mile a minute about the finer details of goat husbandry, or how to rewire a cell phone to dispense milkshakes. Cassie wasn’t sure if she was bothered by the image or turned on by it. There was some kind of twist in her gut, and she wasn’t sure what it meant. She’d have to investigate that some other time, on her own. “Not with someone else, no,” the Doctor said, her tone thoughtful. “Should probably get around to doing that at some point. Check it off the list.” “The list?” Cassie put her feet a little deeper into the water, and the cuffs of her jeans were getting wetter. “List of things to do,” the Doctor said. “Important things. Like skydiving, eating fugu, shopping at a Tesco, making spaghetti bolognese...”