(based on this headcanon post!)
Loki had been a guest at the Tower for two months, and they had been startlingly uneventful. Steve wished he could say that he wasn’t surprised, but he couldn’t quite go that far. Yet Loki had…behaved. Toed the line, stayed in his designated rooms.
Kept a pollite but distinct distance from Steve that made him wonder if that frantic few minutes in the kitchenette had been a fluke, or a dream, or Loki just messing with him.
(And if that’s all it was? Steve asked himself, and tried to tell himself it didn’t matter.)
Still, he went up to Loki’s four days a week for at least a visit, though Loki’s talkativeness varied. Today when he rapped on the door he was answered with a call of “just a moment,” and settled back to wait.
It was only a moment, however, and then Loki opened the door, wearing - nothing at all. No towel, no boxers, nothing.
Steve thought he was going to choke on his tongue. He could feel his face heating and fixed his eyes on Loki’s, trying to keep them from straying anywhere else.
“Good afternoon,” Loki said, his voice as polite and cultured as ever. He showed no sign of awareness that there might be something odd about his state of…undress. “I am afraid I wasn’t expecting you so early.”
“I…meeting got out early,” Steve managed to get out, through his suddenly tight throat. “Thought I’d come up.” He needed to figure out how to tell Loki to put his clothes on without sounding insulting. “Would you rather I, um…”
“No, no, come in,” Loki said, stepping back and turning, and Steve lost his focus, eyes taking in the lean muscle of Loki’s back, his slender hips and long legs and tight, round-
Steve jerked his eyes away, staring at the couch. “Loki,” he started, tongue feeling thick and clumsy. “I…hm.”
Loki turned, eyebrows arched. “Yes?” Steve’s thoughts stalled, trying not to look but it was hard not to when Loki was just standing there looking, frankly, gorgeous, and the thought popped into Steve’s head that there was a couch right there and a bed not much farther away, followed by the memory of Loki’s head thrown back, lips reddened except this time Steve was on his knees, taking Loki’s cock in his hand and-
Steve cleared his throat loudly and looked toward the windows. “Could you put some clothes on? Please?”