This is how I imagine the uncle Dave talk going:
“Mommy, what kind of job does Uncle Dave have?”
“Well, honey, that’s a difficult question. He does [insert some bullshit menial job here] in order to make money, but what he likes to do is write stories.”
“What kind of stories?”
“Ummm…adult stories.”
“What does that mean?”
“Well, they’re stories that only adults can read.”
“I don’t understand.”
“Who wants ice cream??”
“Oooo, me!!!!!!”