[Gon notes the feedback of his reacting body and gives Killua some space, surprised at how sensitive they are. He was even more curious about his tail, wanting to feel along frilled, white fins that splay out beautifully in the water.]

Sorry, I got curious..but okay! We can do that! [He swims towards the center with Killua.] Hey, Killua? Did I tell you I can hold my breath for over 9 minutes? D'you wanna see?