Tony tended to begin new projects in the middle of the night. Somehow whenever they had a quiet moment together there was something at the back of Steve's mind that waited for Tony to get his newest idea. The futurist would almost leap out of bed to go to his workshop and start working on whatever idea it was that he came up with this time. Steve would wake up, missing Tony's weight by his side, realise his husband must've had an inspiration and go back to sleep again.
In the morning he would make coffee and breakfast, go down to the workshop, embrace Tony from behind (however awkward that might be if Tony was actually sitting at his desk) and ask him to join him for breakfast. Tony would ask in a mocking tone if he had any other choice and Steve would chuckle and tell him in the same tone that no, he had no other choice in this matter. Then Tony would usually stand up and give Steve a short kiss before saying that he wouldn't want to keep him waiting then and Steve would smile as they went upstairs, Tony telling him about his new project and Steve thinking that he wouldn't want it any other way.