Three months of dealing with Haruhi's raging hormones led to the girl appearing before Kyoya to something about them.
Kyoya wanted to keep pretending that Haruhi's crush on him didn't exist, so that they could both move on with out tarnishing the Ootori or Suoh name.
Haruhi must have decided that she should destroy her clothes in her struggle to find the words to describe her feelings.
"Mom, I have something to tell you." Haruhi finally spoke up though she looked terrified of the conversation that she had decided that they needed to have.
"Then, go ahead. Standing there isn't talking, and stop ruining your clothes." Kyoya demanded, hoping that Haruhi would chicken out at the pressure.
"Okay." Haruhi muttered softly.
"What were you about to say?" Kyoya asked, counting on how shy teenagers were when it comes to things such as love.
"Mom, I love you." Haruhi confessed to Kyoya.
Kyoya decided to play dumb, "Of course you do. I raised you. I love you, too."
He hoped that she would never know how true that the last sentence was, and that Haruhi would never discover how far his feelings of love went.
"Not that kind of love." She retorted, making Kyoya wonder when his daughter had become so rebellious.
"What kind of love?" Kyoya asked Haruhi, hoping that she wouldn't know how to explain it, and that she would leave Kyoya alone.
"I'm madly in love with you, and want to have your babies!" Haruhi shouted, startling both Kyoya and Haruhi, herself.
Haruhi's face flamed up out of shyness and embarrassment.
Kyoya was horrified that his daughter would say something like that let alone think it.
"There will be no talk of having anyone's babies. You just turned fourteen." Kyoya scolded Haruhi, and tried not to imagine Haruhi nearly dying from a pregnancy that she wasn't ready for, or a mutated child born from Haruhi's womb.
Those were his main concerns rather than a ruined repuation for his family, and it's name.