There was this thing bothering Tony. There were times when he was with Steve that he got this strange feeling, he had no idea what it was, but it felt like his his chest was tightening and his throat felt itchy.
Sometimes it happened during and/or after sex. Other times it was at four in the morning when Steve came down to his workshop and -instead of dragging him to bed- handed him a fresh cup of coffee and asked Tony what he was doing.
It happened when they had silly fights about the remote. It also happened when they had more serious fights after one of them gets injured in battle. Sometimes they spent hours without talking to each other and it happened again, but the tightening on Tony's chest was more painful then.
Tony is a business man and he has to travel from time to time. While he's gone, he can't shake off that strange sensation and when he gets back and Steve is kissing him the moment he enters the house it's even stronger.
It happens more often lately. He lays his eyes on