Kiko, you pee with your penis, right? In the toilet. No big deal, right? It's something that your penis does. It's like how it works. Girls do it with their vagina. Different shape, but same result. It's how we both go to the bathroom several times a day. No big deal going to the bathroom, right? Boys and Girls do it. Men and women do it. Regular stuff. Eating, drinking, pooping, peeing, wiping your mouth, wiping your butt, showering to keep clean, we both do regular stuff.
[ Pee does NOT come out of a banana or a pear.
Now you know where nightmares come from. Good going.
]
[Where babies come from:] The penis and vagina ALSO do other stuff. Like how your mouth tastes and feels things, but it's big job is getting nutrition into your body so you have energy. When two people really love each other they can decide to share something really cool together. The man puts his penis in the womans vagina. Then, sperm comes out of penis and sometimes it connects with a little egg in the woman and a little baby starts to grow in the woman. That's how babies start.
I told halfpint this while we were driving somewhere. It literally took less than 4 minutes. It was no big deal, she was half paying attention, asked a couple questions that were easily BRIEFLY answered and then we were back to talking about horses.
Make it no big deal. Do you cook with him? Play cards with him? THAT's when you have 'the talk.' There's no "I want to talk with you about something earth shattering and so serious that I need your full attention like when we talk about Stranger Danger or what to do in a weather emergency. It's THAT SERIOS." You don't want to scare the shit out of him. Hopefully.