Steve/Bucky-ish, Steve's vibrator comes from Hush (Let Me Love You With My Silence). Minor spoilers for: Captain America - The Winter Soldier.
Kef: Drowsy contentment.
Steve really, sincerely hoped that Clint was too busy with his and Natasha's activities to be paying attention to the network usage in the Avengers Tower. When he wasn't on missions, Clint was assigned the task of using his sharp, acute visual skills to monitor the networks and feeds that ran in and out of the tower, just to make sure they weren't under any sorts of cyberattacks or whatnot.
However, given that it was an early Sunday morning and the sun wasn't even up yet, just a smudge of orange on the horizon, Steve felt relatively safe about his planned endeavours.
He swallows as he opens up the laptop Tony had given him to help him get used to the 21st century, his fingers drumming nervously on his pillow as he gives a sideways look to the dark blue vibrator he'd taken out of the packaging the night before.
This Chrome feature was really quite useful, Steve muses as he opens a new browser window. He silently apologised to the little man with the sunglasses and the hat for what depraved things he was about to search for.
Steve just stares at the screen, his face colouring a bright crimson. No, surely not, surely those monstrous things couldn't fit insi - oh, well, apparently they would and could. What a time to be alive.
Steve looks at his dark blue vibrator, which seems relatively tame in comparison. Swallowing roughly, listening intently to the creaks of the Avengers Tower just to make sure that nobody else is up yet, Steve pushes down his boxers (star-spangled, of course) and liberally coats his fingers with lotion.
He sighs, trailing his hands down his body, pinches at his nipples and squirms as he feels slight tingles of pleasure run down his spine to pool in the pit of his stomach. He bites his lip as he tugs at himself, once, twice, trying to think about something, someone, anything. His mind flits over to Bucky for the briefest of seconds, thinking about the last time he saw him. Dark eyes, teary, his hair long and matted, his beautiful mouth covered with that horrendous black muzzle mask thing...
Steve stifled a groan into his pillow at the memory. Bucky had promised that they'd see each other soon, but it had to be kept a secret. The idea of some illicit rendezvous really did appeal to Steve's romantic sense, and oh God, it had been quite a while since he'd touched himself like this.
Not wanting to finish too soon, he reached behind him, tentatively working a finger into himself. It felt odd, but it wasn't too bad, he decides as he takes a deep breath, presses in a second finger. Scissors.
And oh. Oh. Oh.
Steve shudders, biting into his pillow to stifle a moan. What was that? he wonders, pressing tentatively against that spot again and feeling the same sharp spike of arousal, heat puddling in his groin.
Not wanting to waste any more time, Steve tugs his fingers out of himself, slicks up the deep blue vibrator with more lotion, and slowly, carefully, pushes it into himself. It isn't very big, just big enough to make a pleasant, heated burn as it makes its way inside.
Once it is settled right up against that lovely spot Steve had discovered earlier, Steve takes a deep breath, curls his hand into the sheets, and turns it on.
He can barely keep a scream from tearing its way out of his throat as he comes, violently, suddenly, all over his sheets.
With shaking hands, he pulls it out, turns the whirring device off, flops over into a dry spot and dozes off with a sleepy, sated smile on his face .
When he wakes up, he finds a little box of text on his laptop.
"Steve. That was fantastic. Think I can have another show soon? ;)
With love, Bucky"