OK If you have small children under 5 yrs old; how did you answer the question how are babies are made?

Awesome Question....... I actually took on this question for the first time with my son when he was 5 years old. Being a parent that believes if they are asking you better be telling (info given age appropriate) -so I went to the local library and got a preschool video on the subject and watched it with my son and my ten year old niece, being careful to answer any questions they had along the way and after the video.