Everything Tony did was sexy, when Steve wriggled out of his pants he looked somehow uncoordinated and awkward. But Tony? Tony was a vision of shaking hips and Steve pushed them down his thighs eagerly.
"You always look fucking incredible," Steve said, his voice pitched low like you could hear just how turned on he was in every syllable. Which was all the more true because now Tony was naked and while he hadn't changed and then changed back Steve could never get enough of him.
Tony joined him back on the bed and Steve smiled as they kissed, his hands dropping down to his ass to pull him in closer. They just fit together better like this, their hips slotting together and he groaned into Tony's mouth.