How to tell a 3 year old where babies come from

I’m pregnant and my 3 year old is highly intelligent. She’s asking how the baby got into my belly, and I told her daddy helped me. And she was like “but how? Did he have to take your skin off?” And I said “he didn’t. But when a mommy and daddy love each other, sometimes they help each other put a baby in the mommy’s belly.” And she was like “.......but how......” and I said “hmmmm I will tell you one day but for now just know that mommy’s and daddy’s make them together.”

She’s not gonna be satisfied til she knows the dirty deets 🤭😬 I mean she knows boys have penises and girls have vaginas, but is it too much to go into detail at3??