"Is that a can opener behind your back?"
Leave it to money to waste a potentially hot thing. According to IRON MAN director Jon Favreau, the 2010 sequel to the insanely popular 2008 movie would have potentially opened with billionaire Tony Stark cutting right to heart of the will-they-won't-they pussyfooted romance with assistant Pepper Potts. Says Favs, "We wanted to open up IRON MAN 2 with Tony waking up, looking over, seeing that he's laying next to Pepper Potts and that they'd just slept together, and just being really freaked out, like, what's he going to do?"
Due to concerns of the future of the IRON MAN franchise, not to mention the AVENGERS series, the studio was quick to nix any heavy metaled lovin'. Other ideas suggesting the drunken nature of the rich playboy were similarly shut down.
One may never know what the hinted sexual satisfaction between Robert Downey Jr's Stark and Gwyneth Paltrow's Potts would have been like. Considering that she couldn't pull off sexy (or alcoholic or psychotic) in last winter's COUNTRY STRONG, I doubt there would have been any great lusting generated from the fanboy population which funds endeavors like these.