About kissing
Kaido looked nervous at his senpai.
He took a deep breath and said, "Inui-senpai."
"What do you want to ask Kaido?"
A slight blush appeared on Kaido's face.
"Why do you kiss someone senpai?"
Now Inui looked up from his current project.
He watched his kohai for a moment and answered, "A kiss is a sign of love or deep friendship. In some countries it's a way to welcome a person and sometimes people kiss someone because they are grateful."
Kaido nodded, as a sign that he understood.
"Did...Did you kiss someone senpai?"
A small smile appeared on Inui's lips.
"No, I didn't. But there is a person who I want to kiss."
The hurt expression on Kaido's face disappeared when Inui kissed him.
"The person I want to kiss, because I love him, is you Kaido Kaoru."
If possible the younger boy turned even more red than he already was, before he whispered, "I love you, too."
Inui smiled, took his glasses off and kissed his kohai again.