Ever since she'd helped him replace the arc reactor, Tony had been obsessed with Pepper's hands. He'd been telling the truth, they were tiny, and he was starting to think more about the things they could get up to. Whenever he and Pepper were stuck in a boring meeting, he was watch what her hands were doing, what she was holding, writing, texting. Pepper did a surprising amount of texting in those meetings.
On one of their nights out, as they walked out of the front door, he grabbed her hand and held it, gently, carefully. She turned her gaze back to him and smiled, squeezing his hand.