"Please tell me that's tea in that mug of yours."
"Unfortunately it is. Since you and every opinionated elderly omega in a twelve block radius have banned me from my coffee, it's the only thing keeping me warm."
"Oh, I can think of something else to keep you warm."
Bucky leans down to nuzzle Tony's neck. Paying extra attention to the sensitive skin of his bond bite, Bucky leaves playful kisses all along it that have Tony laughing happily.
Tired, Bucky struggles to stay awake, intent on watching his son fast asleep on his chest.
"Putting your space heater skills to work, huh?
Knew your crazy alpha body temperature would come in handy someday.
Other than being mildly uncomfortable while working out and an ungodly sin in the summer."
Bucky closes his eyes in answer, drifting off to the sound of Tony's voice and the soft snowfall from outside.