Sam, Dean and the police officer have to be staring intently at the last slice of pizza, right? Will they play rock, paper, scissors for it? OK. So it’s probably a body or something related to their case, but just imagine if there was only one slice of pizza left instead.
Sam has been captured, and hopefully, probably, his brother will show up to help him get free. So is Dean just grabbing a beer in the meantime? Maybe flirting with a cute waitress? Sam definitely needs some help out of this one.
Castiel: It's very complex. If the pizza man truly loves this babysitter, why does he keep slapping her rear? Perhaps she has done something wrong. Dean: Are you watching porn? Why? Castiel: It was there. Dean: You don't watch porn in a room full of dudes. And you don't talk about it. Just turn it off. Well now he's got a boner.