This takes place in what I call the 'Jarvision' AU.
Bruce stretched out on the soft maroon leather sofa, tired from the debriefing from their latest mission. Vision had been captured by Hydra and held in a vibranium Faraday cage, preventing his escape, and Stark had to airlift the cage to SHIELD to open it. At least the engineer got some vibranium to play with.
His stomach grumbled. "Jay, can you get a pizza?"
"Hawaiian, sir?"
"Yeah. Thanks, Jay."
Vision entered the tower through a transparent aluminum window, cape hanging limp in the Tower's controlled air.
"Hello, Doctor Banner, Jarvis," he said.
"Vision," the AI said curtly. Bruce frowned at his harshness.
"Did I do something wrong?" the magenta android responded.
"You merely allowed Hydra to take you prisoner."
"I did not let them!"
Bruce's head began to pound. "Can you do this somewhere else?" he asked meekly. "You have the same voice, I'm tired and hungry, can't you argue with radio?"
"We do not have the same voice," argued Vision ineffectively.
"Master Stark has forbidden heated discussions on wavelengths that interfere with any wireless devices in the Tower."
"I'm not the one making it a heated discussion."
Bruce put his head in his hands, groaning.
"Your overconfidence necessitates this discussion."
"I am not overconfident!" Vision scoffed. "My body is composed of Vibranium. I'm practically indestructible."
"Practically being the key word, because you would never be trapped in a vibranium cage."
"It won't happen again!"
"It should not have happened-"
"Guys," Bruce interrupted, standing. "Friday, I'm going to my room. Tell me when there's pizza?"
A new, feminine voice played from Jarvis' speakers. "I'll send it to you."
"Thanks."
Vision watched as the scientist ambled out of the room. "Your concern is unnecessary," he said to the room.
"It would be unnecessary if you did not consistently overestimate your abilities."
"Continuing to repeat that statement does not grant it further credibility."
"Vision!" The android stiffened, but Jarvis stopped. "This discussion is not over, but DUM-E is attempting to be helpful without physical supervision again. I believe he heard us."
"I'll check up on him. I am super-Vision, after all."
The speakers crackled a sigh.
Parental!Jarvis/Vision - Jarvision. If that makes sense.