So, once again can't find a fic that I thought of. It was with Tony, who had given birth to twins, girls I believe, and Steve talking. Ton was expressing his insecurities about his weight because he hadn't lost it, and the others were teasing him about it. Steve was reassuring him, and planning (I think) to get them to lay off. It was short, and I believe AO3, though I have gone through the tags I believe it would have been under and I cannot find it. Any help would be appreciated!