Gravitational

"Tony tried to ignore the shaking in his hands. He clenched his jaw and stood his ground, watching as Cap pulled his cowl off as he approached.

“What?” Cap questioned as he entered Tony’s personal space. “What did you say?”

The emotions conjured by the image in front of him were just as unwanted as the goosebumps, but who could blame him? He wanted nothing more than to press his lips against Steve’s just like he had that first time two months ago."

Somehow Tony always finds a way to look a gift horse in the mouth. There's only one way for him to find sleep at night and he'll have to come to terms with some unwanted emotions in order to finally get rest and get Steve.

Part 2 of "Like the Old Man Said" Series. Can be read alone, but makes more sense following Slumber.