[He's so sure that's what happened, that Sheena remains silent, not wanting to hurt him by telling him what he suggests is impossible, since she firmly believes Igaguri--goofy as he is--wouldn't have withheld that information from her.]

Maybe...

[Oh yes, a baby with healthy lungs--just like mom.]

You really don't need help keeping your promises, Zaki, you do fine on your own. [A pause and a blush.] And yes, I do feel lucky.