"That is so unhelpful," she complained. "Things happen because of cause and effect, you know that. I wanted to kiss someone and so I kissed you. If I hadn't kissed you for that reason, there wouldn't have been a reason for us to kiss. Unless there is some other reason we might have, which is ridic... oh."
She hadn't kissed Stephen only because she was curious. Yes, that had something to do with it, but Padma had kissed Stephen the second (and third) time because she wanted to kiss him. Wanted to feel her stomach turn upside down again.