Elementary school students 5th grader, 11 and 10 years old.

-You know, the other day while I was showering, I caught my older brother watching me.
-No way! No way!
-At first I couldn't see very well what he was doing, but when I got out I made him show it to me and he had been playing with his pee-pee while spying on me.
-Gross. Such a Lolicon.
So... he showed it to you... What was it like?
-It was a surprise at first. It became so big and then some white cream came out! He told me he would show it to me again tonight and he'll let me to touch it.