All avengers were in the Stark Tower in another one of Stark's parties, well, not all avengers. There was a certain innocent captain that was too correct to go to these "profane" events as he liked to describe.

Everyone was having a good time, drinking, talking, making moves, Thor was drunker than ever and was hitting on Banner, who was fighting really hard for the green man to not show up.

Everyone except Tony, Natasha asked him what was going on earlier, cause he was really different those days, and since that Tony couldn't stop thinking what was wrong with him, he didn't hit on any girl, was not talking so much, just drinking his scotch alone at the Bar watching the party.

It was like something was missing but he didn't know what. But he was Tony Stark and he knew everything, so he needed to solve this as soon as possible.

-------------x------------

Meanwhile, Steve was training in his punch bag at the avengers base. He was training a lot these days, more than usual.

"No, Nath, I don't want to go there, I don't like those things, thanks anyway, you have fun" - Steve said and hung up.

He liked parties, but there was something about Stark's parties that bothered him, he used to go to those parties but there was something lately that didn't feel right when he was there.

It was not about him having leadership conflicts with Stark all the time, he didn't mind that cause he knew it happened because he likes do be in control as much as Tony does.

It was about... What was it about?

Steve thought about that for awhile and didn't find an answer, that was why he was training so much, to try to keep his mind of this as much as he could.

Unfortunately it was not working