"Yeah," Neville agreed, fervently. In fact he couldn't think of a worse scenario. Even being caught by his own parents would have been more bearable, if just as embarrassing. He didn't have to convince them to like him, they didn't have a choice.
On the other hand, they were adults, after all. It wasn't as though they'd done anything wrong. And they'd been careful - "Shit," he said again, this time with real anxiety. "I forgot the damn sterilisation charm." He looked at her guiltily. "Are you...?"