Joke Collection Website - Cold jokes - What would you say if your parents joked that you were not their own?

What would you say if your parents joked that you were not their own?

Since it's a joke, you can't take it seriously. My parents often say that my sister and I were not born to them. We didn't say anything because we all knew it was a joke. So you, too, don't take your parents too seriously. This is just a joke.