Under The Mistletoe
"Steve! Steve! Wake up, it's Christmas!" Loki called.
"Okay, I'm up. Wake up the others, I will get Tony and meet you downstairs."
When Steve looked at the clock, it was exactly seven which was the time Steve had told them they had to sleep till. He made his way down to Tony's room, but found it empty when he got there. He went downstairs to see him unloading presents from a red bag under the tree. He was wearing red pajamas and a fake white beard and a Santa hat.
"They are coming down here in a minute." Steve informed him, letting his presence be know. Tony jumped slightly.
"Oh, that's okay. I have a plan. Wanna help me unload?"
"Sure." He walked over and picked a wrapped box out of the bag and set it down. Then Tony tapped him on the shoulder."Hm?" Steve asked and Tony pointed up. There was a piece of mistletoe above their heads.
"That means we've got to kiss. You know, traditionally." Tony said nonchalantly with a shrug of his shoulders.
"Okay." Steve said confidently, shocking Tony and himself, and pulled tony towards him.
He pulled the fake beard down and kissed him soft but firm directly on the lips. It lasted a long time, Tony's arms around Steve's neck and Steve holding onto Tony's waist. They only broke off when they heard Clint.
"I saw Mommy kissing Santa Clause! Under the mistletoe last night. She didn't see me creep down the stairs to have a peek. She thought I was tucked up in my room fast asleep. Then, I saw Mommy tickle Santa Claus underneath his beard so snowy white. Oh, what a laugh it would have been, if Daddy had only seen Mommy kissing Santa Claus last night!" Clint sang and all the others giggled.
"I love you, Steve Rogers."
"I love you too, Tony Stark. Now, let's celebrate Christmas with our kids."
That they did. And you know what? From that day on, Steve and Tony were officially their parents.
Merry Christmas and Happy Holidays!