"Why not two??"

So last night I went to a movie at the dollar theatre with my good friend Matthew. As we walk up to the ticket window the ticket salesman looks at me and says, "You wait there." Matthew and I exchange confused glances and Matthew approaches the window.
"One ticket for Ocean's Thirteen please," says Matthew.
"Why not two??" Says the ticket salesman.
Matthew makes his 'I feel awkward' face (he's a shy boy) and says, "Why NOT two?!" very enthusiastically.
(At this point I'm trying to contain my laughter...)
And ticket salesman says, "I mean c'mon, it's not like it's very expensive..."
"True," says Matthew.

As we walk away from the window I can't help laughing. And I don't stop for ten minutes. During this time my dear Matthew is trying to un-awkward-ify the situation, saying things like, "I don't know why I didn't just say two in the first place... it's cheap... and it would have been faster."

I'm still laughing about it as I write this.

I mean c'mon... WHY NOT TWO?!