Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/3312512.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      Other
  Fandom:
      Teenage_Mutant_Ninja_Turtles_(TV_2012), Teenage_Mutant_Ninja_Turtles_-
      All_Media_Types
  Character:
      Donatello_(TMNT), Raphael_(TMNT), Leonardo_(TMNT), Michelangelo_(TMNT)
  Additional Tags:
      Masturbation, Underage_Masturbation
  Stats:
      Published: 2015-02-08 Words: 1740
****** Benefits ******
by Kalorii
Summary
     Donatello thinks he's got all of the advantages in regards to the
     time he spends alone in his lab. The world is always out to prove him
     wrong.
Notes
     So I've finally written a fic for one of my most long-standing
     fandoms. I'm really hoping that this becomes a regular occurrence but
     that always depends on how many ideas I manage to get.
Being the brains of a team had certain benefits attached to it.
For one, Donatello could always make excuses as to why he was up late. Mentions
of a complicated project along with techno babble always had him dismissed with
a yawn and a wave of a hand. It'd gotten to the point where he could simply say
the word "project" and his brothers would make a face then retreat to their
rooms for a good night's sleep.
The second benefit was that he was the only one who had a laptop. He highly
doubted anyone else besides April and Casey even knew how to use it and their
two friends didn't normally stay overnight. He could visit anywhere online and
no one would even think twice to check his history. Still, he kept it clean
just in case. All he needed was for April to type in the starting letters of a
domain and it suggested something that wasn't YouTube. Close but not it.
It only took a quick glance around to notice that his brothers and Splinter had
retired to their rooms for the night. Once again, Donnie was alone and free to
work in his lab. He still closed the door, leaving it open a small crack to let
the light shine into the room beyond. It was a habit he'd picked up, wanting to
let his family know that he was still there.
He returned to his desk, sitting down in his office chair and typing a few
things into a console on his computer. It'd been true for once that he was
working on a project but it would take a long time before he finished it.
Building artillery for a modified vehicle was technical work and he'd had
enough of that for the night.
Don grabbed the ear buds he used from a drawer, plugging them into his laptop.
He loosened his mask and then pulled it down to rest around his neck, rubbing
at his eyes. The lack of sleep from the past couple of days was catching up to
him. It was something he was used to and he already knew his own limits. He
could stay awake for a while longer.
There was, perhaps, a touch of guilt associated with what he did. Normal
teenage males would do it all the time, likely not feeling any guilt at all for
it. While he looked different on the outside, Donnie was really no different
than they were. He had his own needs that required tending to whether he had
interest in someone or not.
With practised ease, he leaned back in his chair and situated the into his
barely visible ear canals. He knew what he liked by now though some of it may
have surprised those who knew him. There were times he wanted the visuals and
other times, like tonight, he mostly wanted the sounds. There was a kink in
there somewhere if he cared to look it up but, for once, he didn't care about
the details.
He closed his eyes and tipped his head down toward his chest, lifting his feet
to prop them on his desk. When he'd first done this, he never would have taken
the risk of shutting out the whole world around him. Donnie was the technician
and also the doctor of the family. If any of them were suffering from an
infection or a cold, he'd be the one on call. However, he'd listened carefully
today and heard only the familiar banter between his brothers and sensei. It
was unlikely he'd be called on for so much as a paper cut tonight with all of
them tucked away in bed.
Letting his mind wander to thoughts like that was his way of reassuring himself
he was alone. Well, as alone as one could be in a home that was shared with
three brothers and their father. He still couldn't imagine living on his own.
Donnie took in a breath and exhaled slowly to clear his mind. This was one time
he didn't need his mind buzzing with thoughts and everything getting in the
way. It was his time and his alone.
A click of the mouse was all that was needed to get things going. He kept his
eyes closed after that, just letting the sounds surround him. There was video
associated with what he was hearing but he'd seen it plenty of times before.
One of the hands which had been resting on his plastron's middle began to move
downward, his fingers easily finding the slit which hid his cock. His other
hand tensed as a particularly lusty moan was heard, a shiver going through him.
It didn't take much teasing to get his dick to slide out, resting on his
stomach. Donnie pressed his lips together, only barely quieting a moan that
threatened to rise up in him. How he longed for the day he could be as vocal as
he pleased.
Stroking himself slowly to hardness, Donnie's active imagination started
substituting who was actually in the video he knew so well. April only made an
appearance some of the time. He cared for her but actively inserting her into
his fantasies like that made him feel weird. What he wanted with her was far
more than anything physical. Just being with her would make him happy, sex or
not.
His mind normally inserted human females that he thought were physically
attractive. Other times he'd think of what a female mutant turtle would look
like which generally had more than mixed results. He'd even admit to trying out
gay porn now and then. Not that anyone was really asking.
Toes flexing and clenching his teeth to force himself to stay quiet, Donnie
squirmed and thrust up into his hand as he let himself get taken into his own
fantasy. Nothing special tonight, just the video playing in his mind's eye. It
didn't need to be spiced up all the time. His dreams did that well enough for
him.
Don never counted the passage of time as he stroked one out, his tail twitching
in time with his strokes. He never thought to open his eyes to check if someone
had walked in unannounced. It almost felt like it took no time at all to be so
close to reaching his orgasm that it didn't matter if someone was there.
No matter how hard he tried, he had a hard time keeping his voice down. He
reached up with one hand to cover his mouth, small noises leaving him as he
edged closer and closer to cumming. He liked trying to hold it off as long as
possible, making it as intense as he could. It didn't help with his
vocalizations but holy shit did it feel good.
He curled up on himself slightly before he leaned back hard in his chair. How
he wanted to just let it all go but he didn't dare give into that. As it was,
he let out a muffled moan as he lifted himself from his seat. He stilled his
hand and let his cum hit his plastron, whining as aftershocks went up his
spine.
It was an unfortunate accident that was bound to happen at least one night. As
he fell limp in his chair, his foot slipped and the taut headphone wire
suddenly went slack. Any chance he would have had to enjoy his post-orgasmic
bliss was cut short as the sounds of pleasured joy echoed loudly through his
lab. There was no real way to hide it, those were the sounds of sex.
Forcing himself into action, Donnie quickly found his headphone plug and popped
it back in to silence the video. His fingers worked quickly to shut down what
he was watching and it was only just in time that he brought up the blueprints
that he'd been working on. Raph, Leo, and a very weary Mikey soon wandered into
his lab looking bewildered.
"Bro, what are you doing? It's past midnight and I want my beauty rest!" Mikey
whined, clutching to the pillow he'd brought with him.
Leo yawned widely and nodded in agreement. "I thought something was seriously
wrong in here. What were you doing?"
It was Raph who led the trio over to Don's desk, much to his frustration.
Donnie pushed his chair in a bit further, trying to hide his cock which was
still working its way back into its hiding spot. He forced his body to sit
still despite the pleasure that still coursed through his body. What a time to
fuck things up.
"Sorry, I had a movie on in the background and my elbow slipped. Popped the
headphones right out," he said, not looking at either of his brothers. He was
sure that he'd be caught by virtue of a guilty look on his face. It wasn't as
if he didn't already have enough evidence of things being amiss by virtue of
his mask being around his neck and how he was sitting. "I must have drifted
off."
Raphael eyed the screen critically then looked at Don, his hand coming up
behind Donnie's head and slapping him. "Go to bed, genius. You need your sleep,
too. If I have to hear whatever that was again, I'll make sure I blast metal
next time you're trying to sleep."
Muttering his intent to get back to bed, Leo led the way out with Mikey
plodding along after. Raph lingered at the door, watching the other two go back
to their rooms before he turned to lean into the lab again. It was then that
Don tensed, the look on his brother's face saying everything he feared: Raph
knew.
"Get an extension cord for that," he said, pointing to the headphones. A wide
smirk appeared on his face. "Next time I won't cover up for your sorry tail."
Finally Raph left the lab, leaving the door partially open as it had been
before their intrusion. Donnie flopped back in his chair with a groan, running
a hand down his face. He'd never hear the end of this. Raph would make his life
a living hell, he might even tell Casey. He might even tell April that Don had
sticky fingers and a dirty mind.
He shut down his laptop and slowly got up from his chair. So much for all of
the benefits he'd thought he'd had.
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