"Chiaki! What will you do if Haruka ever feels sexual frustration?"
"It won't come to that with Haruka-neesama, bakayarou."
"Since she takes care of us all the time, she doesn't have time for boys. Without doubt the time will come!"
"The least we can do as her sisters is satisfy her when her need is greatest! What will you do if Haruka becomes traumatized from your inexperience?"
"... Ha-.. Haruka-neesama..."
"Just leave everything to your big sister. Relax and learn!"