Ozy's lines take away from the punchline, but without it, it would have just been a mediocre joke, and his only reason for being there would be to ask the question, and then do a reaction shot. It doesn't really feel like the other strips so far, which were standard-fare punchlines (setup > joke start > punchline); it feels... well, youthful. Like they're still kids, and not the author mouthpieces that they begin to warp into over time.
It's cute, I like it. It's not 'funny', so to speak, but it doesn't need to be; it's just sweet.
