He rolled his eyes quickly as she politely blamed herself for their incident. Well, she definitely had good manners, that much was for sure. "Well, we all get a bit consumed in our thoughts sometimes. I can hardly fault you for it." [i]I did the same thing literally just a moment ago.[/i] "And it's a pleasure to meet you as well. I've not had the honor of speaking with somebody as well-mannered as you are in quite a while." He could only remember one of his "uncles" speaking in such a reserved, polite manner. It made sense, he was meeting his mistress's son while the boy's father was in the other room doing work. 

Dismissing the memory quickly, he processed her response to his question, as well as her follow-up, thinking on the appropriate way to phrase his answer. Once he had it, he let his mouth open. "It's part of my workout routine. I usually use it for cooling my body down as well as winding my muscles down. It's less stressful on the body than running is, as well, so it's good cardio exercise without the joint pain." Stretching his chest and back, he turned onto his back and slowly pushed himself through the water, alternating between wide, frog-like kicks and quick fluctuations of his feet to propel himself around. 

Reaching the end of the pool, he turned around and returned to the side of the pool he'd started on. Halting his movement, he simply stayed there, looking over Mizukimura-san. She...certainly wasn't unattractive. Now that he was a bit cooler and his body wasn't flooded with endorphins, he could actually get a good look at the girl on the edge of the pool. Swimming to spit in the face of her blindness, much like his origami skills. He couldn't suppress the third chuckle that came to his lips, and his face flushed. [i]Well....that's gonna need an explanation.[/i] "Sorry, I just...had a thought that struck me as funny. A perceived similarity we share that, actually, I'm quite proud of." He was leading her to ask, of course, but if she didn't take the bait, he wouldn't push it.