"aaaw" he doesn't really know how to reply to that, but it makes him melt.

He usually wouldn't react like that, but hey, Rico's special.
"That's nice"

He almost wants to talk about how it's good that Rico isn't like anyone else, because that's what makes Hawaii feel all fuzzy and warm. But that's not the kind of special that bothers Rico, and he doesn't really know how to address all of this without sounding weird.

"This... man, I don't know, I feel like I'm about to pop a boner"

He sounded weird, exactly as planned.