My parents are both doctors. When I was a child they bought some VHS tapes (that was the 90s) cartoons documentaries for children about the human body covering

My parents are both doctors. When I was a child they bought some VHS tapes (that was the 90s) cartoons documentaries for children about the human body covering also the reproductive system. When my partner was pregnant we told explicitly to our 2yo daughter that there was a baby in mom's belly. When the baby was born we told her we went to the hospital and the baby came out of mom's zezette/vagina (zezette is the french word for kids to call vaginas). I understand that the sex part and human psychology might be harder to explain but you can definitely explain the mechanical part. Sex have a lot of taboos and emotions attached to it but you can describe it to a child without those parts taking a medical/anatomic perspective. As they say in the Scrubs tv show: "Maybe the dirty little secret about sex is that it isn't so dirty after all"