It was just one of the numerous things he would learn. Jae-Ha at the least was well enough aware of both Kija's upbringing, along with his mindset. Of course he was by this point. —So naturally, too, he could read every bit of what Kija's was feeling as it played out.
There was just enough pressure behind the claw against him where he could almost feel its sharpness. If Kija were more assured of himself, and more familiar with this sort of thing, Jae-Ha might have asked to feel more of that. Kija did have absolute control, but he didn't want to risk that right now. It was too soon, and to call it brand new was an understatement.
So he'd try something else. After stealing a kiss, not so chaste as before, Jae-Ha drew away completely. He took several steps back, which led him out of the bathroom and into the main room again. His eyes remained upon the still-very-red Kija.
"Experiment a little, then." He challenged the other. "Come after me and try something that you think you, yourself, would like to feel."