"This thing that's making my skirt poke up! Yukari-sama grew it on me! Isn't it something only boys are allowed to have?"
"Uh... Er... Yes, Chen."
"Well, what is it? It's stiff and feels weird..."
"Weird? What do you mean?"
"It... feels strange, but also... pretty good. Actually... really good. What is it?"
"Um... Well, Chen, it's something grown-up boys use to make their special girls feel good."
"Feel good?"
"Uh... Yes, Chen. And when the girl feels good, the boy feels good too."
"Really..."
"Yes. But it should only be used with a very special someone."
"A special someone? Like Ran-sama?"
"Ah, Chen, I mean someone even more special than Ran-sama."
"But no one's more special to me than Ran-sama."
"Well, it has to be someone you love with all of your heart. Someone you want to spend all of your life with. Someone you're willing to go through pain for."
"But I feel that way about Ran-sama... Ow!"
"Ow?"
"It's twitching... It... still hurts, but it still feels good poking at my skirt..."
"..."
"It twitched when I started talking about you, Ran-sama..."
"..."
"Ran-sama... I really, really love you... I want us to feel really, really good together..."
"..."
"Please, Ran-sama...?"
"...OK, Chen."
"Thank you, Ran-sama..."
On a side note, oh my Shinki, I love Chen's expression. You can just tell it's her first ejaculation, and she's loving it very, very much.