Bellatrix blushed at his touch, fully catching his meaning. Her mum had taught her quite a bit about being "modest," as no nice Pureblood young man would ever want to marry her if she "whored around" and gave in to whatever desire she felt on a whim.
She took a moment to decide, unusually hesitant. She enjoyed any chance to make mischief with Roddy - well, this was just a new kind of mischief, wasn't it? She had always been curious about sex, and she found Roddy very handsome, though that had always been at the back of her mind before now.
Bellatrix wondered what Narcissa would do in this situation, but not for long. Of course she would be perfect, like always, and do just as Mum says. Bella resisted the urge to roll her eyes at her goody two-shoes sister.
"All right," she finally said, always game for breaking more rules. Especially with Rodolphus.