This Stony is an oldie, and I don't think I read it on A03. What I remember is: Steve and Tony wake up in bed together, I think in Las Vegas, with wedding bands on but can't recall the ceremony. It is probably set in the 616 universe. I hope someone recalls it! Thanks.
Looking for a fic where tony rescues all of Loki’s kids- hela is youngest, half of face skeletal with green pinprick of light in skull socket for that eye. Wears long hair over that side of face to hide it and beanies, doesn’t talk much. Sleipnir is found in odin’s stable, tony frees him and writes a message to Odin on stable wall. Jorgmandur is found in underwater cave system in marianas trench, fenrir is chained down to a rock with a sword going through his bottom jaw to the rock. All kids turn back to human forms after rescue and older boys become friends with Peter? The kids and Loki all stay with tony in tower