[Action!]
[At the laugh, Tsuna can't help but smile in a bit of embarrassment, feeling kind of silly. He nods slowly] Well, if you're sure it won't be, then... then I'd really like to stay with you. Only if you're sure though!
That's good! I'm glad to hear it! Though it's a shame about... [Tsuna pauses, letting that last bit of new information sink in] He's your... father? But... [He's, understandably, confused about this. It's like imagining that Dino is his father (even if they aren't related by blood at all to begin with)] Was this a secret or something? And you found out?