Aoba didn't think too much of cleaning Kuro off. His hands start at his lower back because he was still sitting, and then slowly trailed upwards. Just as thorough as he was in bandaging and healing him, he was thorough with cleaning his back off as well. He listened to Kuro's humming, and cleaned over where his wings would be. At the time, he forgot about Kuro's explanation of how it was a sensitive area, but hearing Kuro purr reminded him immediately. His hands went upward to continue cleaning his back. 

In the process, soap managed to float and cling to Aoba, but he left it there to clean himself off once more. He stood up, shivering lightly at the gentle breeze that hit his wet skin. He managed to stay hidden waist down in the water as he continued his little task. "All clean." Aoba said before stepping back and lathering up with all the soap he collected. He did this until he was playfully covered in the suds. To get rid of them all, he sank back into the water and watched as they dispelled. He cleaned off the front of his wings, easily being able to reach them. 

But it was most definitely impossible for him to clean off his own back. His wings were in the way and unlike Kuro's, they didn't disappear. Closing them didn't help either so he wondered if he could ask the demon to do the same for him. Aoba never did ask though, being far too. . . Shy in the process. His gaze fell on the demon a few times, until finally he decided to ask. "Um. . . Help?" For some reason, every time he tried to ask Kuro something it came out sounding fairly helpless. Just like when he asked for Kuro's help when he needed to be bandaged. 

Dani's riled behavior was getting more and more obvious just by sound. Aoba had looked over a few times, hearing the growls or the exasperated groans. "I hope so. . . Though he doesn't sound very happy about it." Aoba sighed but nodded. "It's okay I understand." He seemed all too willing and accepting to make an agreement with a demon that wasn't Kuro.