He wants to, but he knows that the reason he wants to is inappropriate. He may be attracted to Koumyou-- at the moment, incredibly attracted to Koumyou-- but he's not going to try to sidestep seeking the man's consent for physical intimacy by pretending he just wants to be innocently helpful.

"Your hair's lovely," he says, by way of indirect explanation for the offer, and then, "but I actually don't know how to braid, so I should probably let you take care of it. Maybe another time you can teach me."

He makes himself move a little further away, sitting on one of the poolside loungers, and takes his Interface out of his pocket. Opening it back up into its eye configuration, he fits it against his ear as a further distraction from how much he wants to bury his hands in that hair and taste that slender curve of neck.