Looking from a shipper another angle, the conversation would be more like:

Hotch: What can I do for you?
Prentiss: [checking him out] Well, I didn’t know you were so hot , SIR…
Hotch: Really? Do do you want a test drive?
Prentiss: OMG! Here? Right now?
Hotch: Course, why not? But quickly before someone knock on my door.
Prentiss: Ok SIR, I’m already going down…

Hotch/Prentiss | shipper scenes - 01

Let’s analyze how shipper this scene is:

• Prentiss already get into the room smiling in a very sexy way
• They shake hands (touch, touchy!!!!)
• She was able to make him smile
• Hotch already know her
• She keep calling him “SIR” (and that’s freaking hot for me)
• Hotch asked her “What can I do for you?” (OMG! The answers that I can imagine…) 
• He also said that he want to “make the call”
 (*-*)

THAT’S WHEN I STARTED SHIPPING THEM

Hotch: What can I do for you?
Emily: Uhh, well, I-I guess I was hoping you could tell me where to put my stuff.
Hotch: Sorry?
Emily: I-I’m supposed to start here today at the BAU.
Hotch: There’s been a mistake.
Emily: I don’t think so, sir.
Hotch: There’s definitely been a mistake.
JJ: [Knock on door] Excuse me. we’re getting started. 
Hotch: Thank you. I’ll be right there. I didn’t approvethis transfer, agent Prentiss. I’m sorry for the confusion, but you’ve been misinformed. 
Prentiss: But…
Hotch: Excuse me. It’s very good to see you again. [goes out] 
Hotch: Did you approve any transfer? 
Gideon: No. I would’ve discussed it. 
Hotch: That’s what I thought. She’s got the paper work to join the team. 
Gideon: You want me to make a call? 
Hotch: No. I’ll make it. 

Criminal Minds 2x09 - The Last Word

Prentiss: Agent Hotchner? 
Hotch: Yes. 
Prentiss: I’m agent Emily Prentiss. 
Hotch: How do you?  Oh, you’re ambassador Prentiss’ daughter, right? I did security clearances for your mother’s staff. It was one of my first commands. I believe you were off to Brown at the time. 
Prentiss: Actually, it was Yale. I’ve been in the bureau almost 10 years now. 
Hotch: Don’t tell me that. Has it been that long? 
Prentiss: Apparently, sir. But I work mostly in the midwest, St. louis, Chicago.
Hotch: Good. Your parents well? 
Prentiss: Yeah, yeah, they’re great. 
Hotch: Excellent. 

Criminal Minds 2x09 - The Last Word