[Just more giggling before she tries to drown it out in the drink, but even that proves difficult before she has to set the glass down on the table, her cheeks flushed a bit with some colour.]

Nothing...

[No, it's not nothing, and she knows that isn't a good enough answer for him, so before he can ask again or do that grumbling thing he likes to do, she goes on to explain.]

I just think it's funny... this whole situation. We made some drinks, I convinced you that I could make a decent one, and now here we are, enjoying a worse drink together. I still think ours came out better.