Scene: the 14D bus, after school..
Caleb, whispering: Mommy, you don’t know this because you’re not a boy. But when you’re a boy, well, I have to tell you something about… [gestures towards his crotchal area]
Me: Your penis?
Caleb: SHHHH! (Whispers again): yes. You know, well, you know when your foot gets tired, how that feels?
Me: All tingly?
Caleb: Yes. Yes, well sometimes that happens…you know, down there. [gestures meaningfully towards crotchal area, again]
Me: Is that happening now?
Caleb (grinning): Yes. It’s kinda good but kinda weird.
Thing is, that tingly feeling “down there” only happened after I’d handed him my iPhone.
Draw your own conclusions.