"Clark, you're too young for this."
"No I'm not."
"Oh. Okay, then."

an hour later

"Clark, how did you get so good at sex when you've never even had a date before?"
"I guess it's because I'm an alien."
"Ah, that explains it."

the next day

"Mom, I'm having sex with Lex Luthor."
"That's nice, dear."

later that week

"Dad, I'm having sex with Lex Luthor."
"I KEELL HIM!!! Er, I mean, whatever makes you happy, son."

that night

"Well, Lex, I guess everyone's OK with this. Let's have more sex."
"Oh good. This makes me so happy, I think I'll dedicate my life to charity instead of becoming a supervillain."