Powers and abilities

The cybernetic technology implanted in Pepper’s chest caused a number of physical changes to her body: it fixed her eyesight (she needed glasses before), increased her metabolism, made her stronger, improved her reaction time and reflexes, and increased her IQ by about 25 points. The electromagnet has also been shown to give her some control over the magnetic fields around her, once allowing her to levitate briefly. She can also disintegrate bullets with it

Pepper’s suit, the Mark 1616, appears similar to Iron Man's and can fly. It contains an AI version of Jarvis to assist her and answer questions, and is ideally suited to her biology and cybernetic enhancements.

However, in respect to Pepper’s wishes that she not become a weapon, the suit contains no weapons whatsoever, and is instead designed for “heavy rescue and recovery”. It contains repulsor technology, and electromagnetic field generators allowing her to suspend and tow massive loads and is powered by solar cells.

Pepper Potts is Stark's personal secretary and budding love interest. He asks her to help him take his old arc reactor out and to put in a new one. Tony tells Pepper to get rid of the old model since he's not a sentimental person, but she but she kept it inside a glass box with a special border around it reading, "Proof That Tony Stark Has A Heart".

In the charity event, Tony then leaves to dance with Pepper and they share a moment together in the moonlight and almost a kiss.

Tony tries to talk Pepper into helping him, believing that nothing else matters but stopping the people who he put in harm's way. Pepper is moved by Tony's dedication, and agrees. She goes into Obadiah's office with a tiny piece of equipment designed to copy files from the computer. As Pepper sifts through stored files, she finds a video from the terrorists proving that Obadiah was responsible for Tony's capture.

In the battle against Iron Monger Tony instructs Pepper to overload the building's Arc Reactor, which will generate a shockwave strong enough to knock out the Iron Monger's suit. Pepper is hesitant, believing that Tony could also be killed. Tony manages to keep fighting while she builds up power to the Reactor. The Arc explodes, taking out Obadiah and injuring Tony. But the energy wave from the Reactor also manages to re-charge Tony's heart battery, saving him from death.

Iron Man 2

Pepper is promoted to CEO of Stark Industries by Tony.

The Avengers

Pepper Potts is seen having a romantic date with Tony Stark at the top floor of the Stark Tower, but they're interrupted by the sudden arrival of Phil Coulson, who has to crash J.A.R.V.I.S.'s systems in order to get in the tower, since Stark is trying to close him outdoors. Pepper has befriended Coulson during their previous meetings, and asks him about his personal life, as well as convincing Stark to listen to him and to read what documents he's giving him. Pepper is well aware of The Avengers Initiative, due to Stark's impossibility to keep a secret, and she manages to convince her boss and boyfriend to help S.H.I.E.L.D. save the world from Loki Laufeyson.

Later, when the Chitauri have started their invasion, Pepper is on a private plane, safe from the battle. Stark, before sacrificing himself to destroy an atomic bomb sent on Manhattan, tries to call her on the phone, but she doesn't hear it and doesn't calls up.

After the battle, everyone comes back to his normal life, Pepper rejoins with Stark. Their love story continues with S.H.I.E.L.D.