Waiting (Soulmate AU) (слэш)

Steve Rogers has only been out of the ice for a month when Director Fury drags him to meet one Tony Stark, billionaire genius son of Howard Stark, and the inventor of a whole lot of tech SHIELD wants to get their hands on.
Oh, and also Steve’s soulmate.
The second their hands meet, sparks are flying between them, and it doesn’t stop there. Unable to keep their hands off each other, the next few weeks are filled with lots of sweet talk, lots of heated touches, and lots of moments where Steve is just completely in awe of this fast talking, bright eyed brunette who bears a matching Soulmark.
Tony is intelligent, funny, so smart and so sexy Steve feels like he’s drowning, overwhelmed by the one who owns his soul, his entire heart.
The search for Bucky puts a strain on the relationship, but when Bucky comes home, things change all over again and now Tony and Steve have to decide if there’s room for one more in their soulbond.
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(This is the fluffiest, most plotless thing I’ve ever written in my entire life. 100% guaranteed to give you cavities. The levels of schmoopsiness are literally ridiculous.)
(re-edited and reposted)