It could have gone either way with them, something physical at the start that might have actually pushed them apart rather than pulled them closer. Or what had happened, more a slow burn. Steve's heart had ached for Tony when he'd lost him, floating and lost for so long and then to see him back and gaunt and in so much pain. All of it, everything they'd come through. It had brought them together. Now that Steve had him? There was no letting him go. Familiarity was his gift and in time he got to learn more and more about him, the more he learned the more he liked him.
More he loved about him. Like how he so effortlessly agreed with Steve's thought that he was lucky, in the most Tony of ways. That smile, those dark eyes, Steve helped pull his own shirt up as he turned on the bathroom light.
The mirror above the sink was big enough to see them both in and Steve instantly found his eyes drawn to the reflection of Tony's. Just looking at him still could take Steve's breath away and he kissed the top of his shoulder, back along to his neck. "You know how I get."