I would drop it for a while then move on to talking about good strangers. (i.e. A mom with kids is a good stranger. You can ask any mom with kids for help anytime.) As well as talking about good secrets and bad secrets.
I think once you have those two things covered and a general idea about our bodies being private, you've got a good foundation for sending them out into the world. Just enough knowledge to keep them safe but not enough to scare them.