The first time Tony stumbled into Bucky's bed, he was absolutely shitfaced. An arm slammed around Bucky's waist jolting him awake as a wave of liquor hit his nostrils. Before his fight or flight response could kick in he realized it was Tony and was too shocked to say anything. So he didn't. He just tensed up and waited. But nothing happened. A soft snoring sound came from the other mans lips. Not really a snore per say, that was too harsh of a word to describe the delicate noise coming from inches away. So close, Bucky could feel warm breath on his cheek. The scent of alcohol was so overwhelming, but he didn't dare move.
Since Steve and Tony had made up, Bucky was walking on eggshells. He finally had his best friend back, a place to live at the Avenger compound, and new companions. And he really didn't want to ruin any of that by overstepping his boundaries with Tony. By which he meant interacting with Tony at all. In the few months he'd been living under the same roof as the other man they'd barley spoken twenty words to each other. It was mostly 'Yes', 'No', 'I don't know', or 'They're training'. Sometimes if Bucky said something funny to someone else around Tony, the other man would even crack a little smile before hiding it behind his coffee cup.
Steve told him that Tony knew the Winter Soldier was to blame for Howard and Maria's death, and not Bucky, but that he also couldn't get over it yet. Maybe it would take time, maybe it was something Tony could never get past. Bucky understood that, so he kept his distance. So when he woke up to a bed full of Tony, he just let it happen, not wanting to make things more awkward. Before becoming the Winter Soldier, Bucky occasionally had a little too much to drink and ended up in some weird places in the morning. Now alcohol didn't have the same affect, his metabolism burned through it too fast. Tony probably just mistook this room for his own and crawled into bed. Bucky was prepared to act like it never happened, so he went back to sleep. And if anyone saw, he'd tell them his arm must've wrapped around Tony's smaller frame after he fell back asleep, no one needed to know holding the other man put him to sleep faster than anything else in years.
The next morning Bucky woke up first and just watched Tony sleep for a few minutes. Through out the night Tony had sprawled out in bed like an animal. Hair stuck out at odd angles, a fistful of blankets, and mouth slightly parted. Bucky couldn't help but think how serene he looked liked that. Silently sliding out of bed, he got on with his regular morning routine. Shower, brush teeth, do hair, get dressed, have breakfast, report to Steve. From there Steve decided how they'd train that day. The Avengers hadn't declared Bucky fit for duty yet, still unsure about how the Winter Soldier effected him. They were right, until they could get all that out of his head, he was still a hazard out in the field. So Bucky trained with everyone in the meantime.
After a few hours with Steve, Bucky needed another shower. It was always a contest between the two of them, seeing who could outdo the other. Bucky loved it. Before the serum, Steve could never keep up with him, now they were finally equals. He was so deep in thought he almost forgot about Tony. Nervously he opened his bedroom door, only to find an empty bed. He sighed in relief, glad he didn't catch Tony while he was waking up. Ignoring the little pang he felt in his chest, he hopped back in the shower, thinking of everything and anything that had nothing to do with Tony.