Wet dreams

Me: [One early morning, while having breakfast, I teased my youngest son, who’s in Grade 5, about peeing in bed] Marcus, why’s your boxer shorts wet?
Marcus: [In his babyish tone] Papa?! I didn’t have wet dreams!
Me: [Dumbfounded] What? Where’d you get that term?
Marcus: [Speaking matter-of-factly] At school, reproductive system?!
Me: [Slightly relieved but anxious of what the reply will be] And what exactly did you learn about wet dreams?
Marcus: It’s what happens when you wet the bed.
Me: [Laughing out loud]