The first time it happens, Steve’s just gotten back from a mission with Bucky and he’s exhausted and filthy and thinking mostly of the nice hot shower awaiting him upstairs. He’s too tired to really care when Darcy strolls past them in the tower lobby, pivots, and fixes Bucky with an appraising look: “Hey there, gorgeous. Do you believe in love at first sight? Or do you need me to walk past again?”
“Darcy,” Jane hisses in her friend’s ear. “That’s Bucky Barnes and you’ve already met each other. Don’t mind us,” she adds at listener-friendly volume, smiling mechanically as she pulls Darcy back towards the door.
There are a lot of seats in the common room of the Avengers Tower. Steve is vaguely aware of this in general, but he’s more aware of it than ever on the day he walks in to find Darcy sitting in Bucky’s.
"Hi," she says blithely when the two of them walk in, and her mischievous grin confirms Steve’s suspicion that the seat theft is no accident.
Bucky stops in his tracks. “Excuse me, are you lost?” he calls out across the room, and Steve grimaces. Bucky can be territorial at times, and it’s not as if Darcy - “Because you’re an awful long way from heaven, doll.”
Well then. Never mind.
"I think there’s something wrong with my eyes!" yelps Darcy over dinner one evening. It’s a near miss, but Steve doesn’t take the bait. The sparkle in Darcy’s eyes is just a little too bright.
Others are less fortunate. “What’s the matter?” asks Pepper, leaning forward in her seat and looking genuinely concerned.
"I…I can’t take them off him!" Darcy is leaning forward too, but her gaze is on Bucky, sweeping him up and down with lecherous intent.
"You’ll be fine," says Bucky, while Pepper chokes on her mouthful. "I just hope you know CPR, ‘cause you’re taking my breath away right now."
"Guys," says Steve.
"Oh yeah? Do your legs hurt too? Because you’ve been running through my mind all day."
"Well, fancy that. And here’s me been wondering what a nice girl like you’s doing in a dirty mind like mine…"
Two very smug faces turn on Steve. Neither of them looks even the slightest bit ashamed of themselves. “Just…get a room,” he says, putting on his sternest face and trying not to let the amusement show through it.
For a moment, Bucky seems to consider this. “Well…alright,” he says at last, syllables long and drawn-out like he’s still not quite sure about them. “But…you’ll have to draw me a map, Steve -“
"Oh, for crying out - Bucky, don’t -“
”- in case I get lost in her eyes on the way.”