Overheard at our house...
Blond Twin: "Mom, we have a question."
Brunette Twin: "Is it okay if we keep a secret from you?"
Mom: "I don't know. What is the secret?
Brunette Twin: "Well, if we tell you, it won't be a secret."
Blond Twin: "So, can we keep a secret from you and Dad?"
Mom: "I don't know. If you tell me the secret, will it get you in trouble?"
Brunette Twin: "No."
Blond Twin: "Really Mom. It won't get us in trouble. We just want to have a twin secret"
Mom: "It's okay, as long as it won't get you in trouble."
Blond Twin: "Good because we want to keep some secrets between us twins, but we don't want to get in trouble."
Brunette Twin: "We think we should have some twins secrets, so we won't tell you this."
Somehow I already regret letting them keep their secret.