The Doctor raised his eyebrow as she mentioned this shop, but instead of asking how on earth she knew such things, he couldn't help but ask her something else. "Really? Do you think I'd be able to get those leather hot-pants there?" he asked, somehow managing to keep a completely straight face.
"Death by..." he was about to say 'vampire dust' but Romana caught him off guard, and he found himself giving another shriek as they tumbled to the floor. "Oof! You might be skinny, but you're strong!" he told her, lying back as he burst into fits of giggles. "Well... I don't think... models go about... killing vampires and the like," he forced out between his giggles.