Work Text:
Leo had no idea how long he’d been sitting there but it felt like hours.
Legs spread wide around his brother’s thighs, normally something that would barely faze him. But after so long of sitting here in the same position, he was starting to get a little sore. One hand was placed behind him, gripping tight at the edge of the chair and the other squeezing tight at his own naked thigh. Trying so hard not to touch himself. Knowing he was allowed to but knowing at this point if he came again, it would be a pain to continue sitting here.
Donnie had told him several times that he was almost done whenever Leo squirmed around. Setting a hand on his thigh to help him calm down. But he was getting so close not knowing how much longer he would be able to last. Sure that his next orgasm would be his last of the night. Not remembering how many times he’d cum. He’d lost count after 5.
But quickly the thought was thrust out of his mind, Donnie readjusting behind him, cock moving inside of Leo. Causing him to let out a low moan and clench down around him.
“This is only going to take longer the more you squirm,” Donnie sighed, not looking away from the computer in front of him. As if it had been Leo to move in the first place.
But he knew talking back as well would make it take longer. Only giving a small shaky nod and trying to keep himself as still as possible.
Only succeeding for a few minutes before he was back to squirming on his brother’s lap. Donnie’s cock reaching so far inside of him, pressing against the entrance of his cervix. Uncomfortablity and pleasure all wrapped into one. Wanting so badly, not for the first time, to reach down and get himself off even if Donnie wouldn’t fuck him properly. It wasn’t like he couldn’t take care of himself. Even if he knew that if he wanted Donnie to eventually fuck him that night, he would have to sit still and actually wait for his brother to fuck him properly. Touching himself was a sure way to get himself thrown off of his brother’s cock and forced out.
He had to follow Donnie’s rules if he wanted to continue to sit here on his lap.
Not that it had been his idea in the first place. All he’d done was walk into the lab with the intention to bug his brother and had gotten this. Donnie saying that he was busy but Leo had continued to bug him because he was horny. Leading Donnie to suggest, “Well then you can sit on my cock until I’m done. But you can’t move too much or I’ll just take longer to finish my work.”
Leo had been too horny to say no, his only option being to say yes.
It had felt like hours of sitting on Donnie’s cock, sight going blurry at this point. While he couldn’t understand any of it anyways, all of the words on his brother’s computer were unintelligible. A small part of Leo’s brain wondered if his brother was even still working at this point. If he was just pretending to work, knowing that Leo wouldn’t know the difference. Torturing him further. Unfortunately that just made him clench down around Donnie’s cock, his brother not even reacting. Just continuing to type away.
That seemed to trigger something in Leo however. Feeling the familiar pushing of his bladder. Wondering how he had missed it. it hadn’t crept up instead coming all at once, surprising him. One of his hands coming up to clench at Donnie’s forearm with a small whine from deep in his chest.
“What is it now Leo?” Donnie sighed, still not stopping whatever he had been writing.
“I—I’ve gotta,” Leo stuttered. Face flushing darkly but not able to stop himself from squirming even more than he had been before.
“You know you have to wait until I’m done to get fucked.” Donnie said. That just made the flush darken even more. Embarrassment seeping through every last bit of himself from the situation. Normally he didn't mind this, it not being even close to the first time he’d sat on his brother’s cock when he’d worked.
The only difference was that those times he’d been able to convince Donnie pretty quickly to abandon his work to fuck him. And when the times when it had taken a little bit longer to do so, he hadn’t needed to pee.
“I’ve gotta go to the bathroom,” Leo said, voice more of a whine than he had wanted. Sounding like a child.
“Then go.” Donnie said with a snort, “I’m not the one preventing you from leaving.” Leo let out a sign of relief, about to get up before Donnie said offhandedly, “of course if you get up, I’m not letting you back inside. I really need to get this done after all.”
Now the reason Leo was staying still was surprise. Surprise at the gall his brother had. Although it’s not that he could stop it. He didn’t know how to prevent the lab from locking him out and Donnie surprisingly didn’t have a bathroom in here.
Leaving Leo to try and sit as still as he could, failing spectacularly.
The dick inside him was not at all helping. Filling his insides up so well. Putting more pressure on his bladder than usual. Which made him squirm more. Making it even worse than it had been just a few seconds earlier. He cursed Mikey for making him drink so much water earlier. Something about worrying about Leo’s hydration.
He drank more than enough water throughout the day. Never had he needed to pee this closely after he’d already gone. Clearly there was something wrong with drinking this much if this was the punishment he was struck with.
While he could just easily look at Donnie’s computer to see how much time had passed, he couldn’t bring himself to do so. Eyes clenched shut along with his thighs, or at least as much as he could with the placement of Donnie’s own thighs right in between his own. Only barely holding himself back from bringing his hands down to physically hold himself back. Hoping that Donnie was close to being done. Not even a small thought in him thinking that Donnie might have been trying to see how far he could push him anymore.
Instead his hands were still behind him, tight around the edge of the back of the chair. Digging into the leather and leaving dents that would easily leave. Trying to think about literally anything but the intense pressure on his bladder.
Head tilting up and pressing against his brother’s shoulder. Donnie didn’t even acknowledge him, not even as he started whimpering. Continuing to type away like nothing was happening. That just made Leo whine more. Trying desperately to hold back.
There was no time however. Eyes suddenly flying open and hands moving to the arm rests, scrambling as he felt it. Giving a rather loud, pathetic whine as he felt the small trickle.
Finally Donnie’s hands seemed to stop but Leo didn’t pay it too much attention. Feeling an unbelievable amount of embarrassment wash over him as what started small trickle quickly turned into more. Leo’s head falling back onto Donnie’s shoulder, turning in to hide away in his neck.
But even if he tried to hide from seeing it, he could both hear and feel it happening. Trying not to pay attention to it as he felt his whole body heat up. Glad that he was sat on Donnies lap meaning he at least wasn’t sitting in it. Sure that it was pooling on the leather.
There was no way Leo could step foot in the lab without feeling residual embarrassment for at least a month.
Finally after what felt like hours, Leo finally felt the stream slow before coming to a stop. The two sat there, Leo finally noticing the lack of keys clacking. Face just barely coming out of Donnie’s neck to see if he was finally done before he was interrupted. Giving a loud yelp as Donnie stood up, hands on Leo’s hips to keep him stable.
Of course, Leo was still thrown off balance but was kept squarely on his brother’s cock. Hands coming down to grip at the edge of the desk in front of him. Feet barely having time to press against the, thankfully dry, floor under him before Donnie was pulling out.
Not pausing for a second before he slammed back inside. Leo felt his eyes roll back as he practically screamed. Glad there was no one else home so he didn't have to watch his volume. Grip on the desk tightening as Donnie did not take it easy on him.
Instead fucking into him hard and fast. Leo didn't take long to cum. Having been worked up the entire time he’d been on his brother’s cock. As such it was only a few minutes of thrusting right against his cervix before his back was arching and he came with a soft drawn out whine.
Of course Donnie didn’t stop there. Instead continuing to fuck into him hard and fast through his orgasm, hitting his g spot on every thrust. Quickly working Leo back up once again. Already close to the edge after his last orgasm.
Donnie’s thrusts were erratic and had no semblance of a rhythm. Leo having no idea when the next thrust would come.
It didn’t take long before Donnie was thrusting inside him one last time, cumming right inside his cervix. Leo coming a second time shortly after at the feeling.
The two panted, mostly still before Donnie pulled out, cum running down Leo’s thighs. Feeling his brother’s eyes on him. Leo was slow as he stood up, the long time sitting not at all doing well for his body, probably not helped by the rough fucking right after it.
Of course the first thing he seemed to see when he turned around happened to be his brother’s chair. Moving away from it before he could think about it too much. Instead looking towards where Donnie seemed fine enough to not talk about it.
“I hope you know I’m not doing that again,” Leo said as he moved towards the labs door, hoping everyone was still gone as he didn’t exactly have his shorts on him. But he really needed a shower. For so many reasons.