AU - Soulmates / Tony hides his soulmates' marks. Everyone is poly because avengers (?)

[Guest Trix]

The avengers all go like in the tower and begin getting each other's marks, everyone but Tony. I'm certain about Bucky, but not very much about Sam being in the story. Tony ends up getting kidnapped when he ran away after Steve confronted him because he felt Tony when he woke up before Tony shut him off, Steve doesn't know about Tony's others marks. They're searching for Tony when the kidnappers send a video of Tony being tortured and they can see their marks on his body. Thor calls Heimdall to look for Tony since he's his soulmate. I don't really remember the end, but I think it's fluff?

Thank you!