Jbirds and the Bees

Today, apropos of nothing...

J: E was in Mama's belly. How did she get there?
A: mhmm... wha?
J: How did E get in Mama's belly?
A: Well, ahh.. hm... you see...
S: Daddy put her there.
J: How?
S: um...
A: (to S) Should we really... ?
S: (to A) I guess so.
A: With a penis.
(pause)
J: (giggles)
A: Yeah. Seems unlikely. Yet true.
J: hahaha... say it, say it again where you say how you put E there!
A: With a penis?
J: Yeah! hahaha! With a penis! I want to see!
A: Oh boy. No, hands to yourself, please.
S: It's private. Like with the potty. It's something a mommy and a daddy... well, usually a mommy and a daddy... do in private.
J: I have a penis! I want to put a baby in E's belly!
A: Oh god.
S: You can't do that. E is just a baby. You can't put a baby in a baby's belly.
J: Ok. Hahaha! Penis!

I'm pretty sure he thinks this is just a big joke. Also: feeling trepidation regarding forthcoming daycare conversations.

So what would you say ya do here?

Backstory: I'm a (radio) astronomer. J is 3yrs old. Some weeks ago, we discussed that my job is "researching stars". This morning:

me: We need to get going!
J: I'm going to D's house. E is going to R's house. And you're going to work.
me: That's right.
J: But there are no stars out during the day!
me: !?
J: You can't research!
me: oh snap!

So I explained 1) there are stars during the day, but the Sun makes it too bright to see them, and 2) I use my computer to look at them. Sheesh. Next he's going to ask to see the stars on my computer. Does he believe I actually work?

Invitees to J's 3rd Birthday

S: Who would you like to invite to your birthday party?
J: Umm... K, and T, and R, and ...
S: and B?
J: yeah... but he pushes me down. But he can come.
S: Who else?
J: Paul!
A: From day care?
J: Yeah, not Paul the Beatle.
(laughter)
A: Not Paul the Beatle? He could sing 'Hey Jude'.
J: Ok, Paul the Beatle. And John. But not John Deere.
S: John Deere has to stay home?
J: Yeah, he has to stay home with his tractor.