The things they say:

“Pepper, in one draft, slept with (Aldrich) Killian because he was so pheromonially enhanced with this extremis that she couldn’t resist him and she was angry with Tony (Stark) and so she sleeps with Killian and then he makes a sex tape and broadcasts it in (hardware store) Home Depot.” Director Shane Black on one bizarre plot twist that was considered for Iron Man 3, which would have involved a sex scene between Gwyneth Paltrow and Guy Pearce.