A/n: This idea just sprung into my mind out of nowhere. Hope you like it!
Nicknames
"I need you to sign these papers, Mr Stark"
"Oh please call me Tony!"
"Fine. I need you to sign these papers, Tony."
"Good, but there's still room for improvement. How about Mr Hot-As-Hell?"
"No."
"Yeah I know what you mean, it's not good enough. Hold on, I'm thinking…"
"Will you please sign these papers!"
"How about Sexiness Personified? I reckon that's a good one, don't you?"
"Most definitely not."
"Come on, you know you think I'm the hottest man alive. The rest of the world does"
"Yes, the people you sleep with do."
"You wound me Potts"
"Good to know. Now, Mr Egoistical Arsehole, will you please sign these papers!"
"What are you willing to do to get me to sign these papers, Potts?"
"I'm prepared to ban you from your workshop for a week and force you to go to every meeting – by the way there are 12 scheduled for next week alone – without me. You'll make your own notes and everything."
"You can't do that!"
"JARVIS, can I?"
"You can indeed Ms Potts"
"I hate you J."
"Thank you sir. I'm just trying to get you to sign Ms Potts' papers."
"Fine. Hand 'em over Potts"
...
"Potts?"
"Yes?"
"How about Mr So-Gorgeous-I-Die-A-Little-Inside-Every-Time-He-Looks-At-Me?"
"Shut up and sign the papers Anthony Stark"
...
...
"Potts?"
"What?"
"I reckon that's the one y'know. It has a good ring to it."
"Excellent. Are the papers signed?"
"Yep. Here you go!"
"Thanks."
"Any time, Potts, any time"
Let me know what you think :)