Work Text:
They were kissing.
Simon was losing his mind and they were kissing. Grace was not shy. He was practically mauling Simon for all the restraint he held over himself. Simon was going to come in his pants and he was still in disbelief because they were kissing.
Grace was rocking his hips onto Simon’s erection with a single minded focus that he usually reserved for test tubes. Simon was not about to start complaining, he matched Grace’s intensity and pulled him closer. Grace executed a particularly talented roll of his hips, dragging his clothed core over Simon’s length in a torturous slide. Sparks flew behind Simon’s eyes as he squeezed them tight at the sensation.
“Fuck. Fuck, Grace.” He groaned as an embarrassing patch of wetness spread in his pants. He hadn’t come that easily since he was still frantically jerking off in the communal showers after training with his Brothers. Back before things started getting serious. He wasn’t too surprised. He had been panting after Grace for weeks. The other man had some kind of impossible magnetic effect on him. He buried his face in Grace’s neck and tried to pretend like he wasn’t mortified.
“That was so hot.” Grace sounded shocked. “Holy cow, you just came because I slipped you some tongue and ground on you a little bit?”
Simon grunted in acknowledgement and tried to bury his face deeper.
“No, no, come back. Let me see. That’s so hot.” Grace pulled away and examined him. “Also, entirely unexpected. I thought you didn’t…” He trailed off.
“What, didn’t like you? I think even Rocky could see it and he doesn’t have eyes.” Simon sassed. He was achingly uncomfortable with having a conversation about this.
“No, I mean…” Grace looked ashamed. “I wasn’t trying to perv or anything. You’re just like, really casual about nudity sometimes. I saw you coming out of the shower the other day and I thought you were maybe like me? I know you’re a man, but I didn’t see… what I would expect to? Down there? If you catch my drift?”
Simon did catch it. He was even less pleased to be talking about it than to be talking about the cooling stain in his pants. He shifted uncomfortably and Grace climbed off, but he didn’t go far. He cuddled into Simon’s side and peered up at him with inquisitive eyes.
“Sorry, you didn’t get a chance to get off, too. I can fix that” Simon tried to deflect.
It didn’t work. “What’s going on, Simon?” Grace pressed.
He sighed. He guessed if they were kissing and humping like teenagers it was probably time to come clean. He wouldn’t be able to avoid reality for much longer.
“I don’t know. You know about most of my mutations. The teeth. The gills.” Grace ghosted a hand over Simon’s side where the sensitive ridges of the large gills had sprouted. Simon tried to suppress a shudder. He didn’t succeed. “There’s more.”
Grace gave him a reassuring squeeze to try and convince him to continue. Simon wasn’t sure how.
“I really don’t know. There’s something wrong with me. I… am a man. I think. I’m not so sure I’m human anymore. I used to have a dick. Pretty regular compared to everyone else’s I think. Now I have. Something else?” Simon looked to Grace like he would miraculously have the answers Simon didn’t have for himself.
Grace looked as bewildered by what he was saying as Simon felt with the whole situation. He had woken up bandaged and clean, missing an arm, but with a lot of new and weird shit in its place.
“Oh, boy, Simon. You didn’t give me an orgasm but that’s okay, you gave me something so much better. You have no idea. You gave me something to figure out.” Unholy glee sparked in Grace’s pretty blue eyes and Simon felt a moment of trepidation before realizing he wouldn’t mind being an experiment as long as it was for Grace. Maybe they could figure out whatever weird shit was going on with him, and then have some fun about it.
—
Simon reclined on the blankets Grace had spread out and tried not to be anxious. He was not doing a very good job at it. At least he had talked Grace into waiting until Rocky was asleep. He had looked God in the eye and was about to become a science experiment, but there were still some small mercies in the world.
He had his shirt off and hair loose. He hadn’t quite managed to convince himself to start whatever this was with his pants off. That felt a little too intimate for people who had only shared a couple kisses and a premature ejaculation. Then again, Grace seemed like he was approaching the situation as a mixture of his favorite pornography and a science extravaganza, so who knew what was too intimate. Simon could probably just pretend he was a petri dish and Grace would be into it.
Grace left the bathroom, drying his hands on a towel. “I figured we don’t need gloves since this isn’t a sterile environment anyway. And it’s partially selfish. I want to feel you.”
Simon’s heart picked up. This stupid, infuriating, candid man was going to be the death of him. He wanted to feel and be felt. He wanted Grace to show him that he was still capable of feeling something good.
Grace’s eyes locked onto Simon’s prone body as he stalked closer. There was a confidence to his steps that was usually absent. Grace who was focused on finding new information was a different beast than the bumbling man that usually walked around running into table corners and doorways. He had an intensity in every movement that was captivating. He was looking at Simon like he was something to be deciphered, and it was heady. Simon wanted to be resolved.
Grace sank to the floor next to him and Simon tried to control his breathing. He was only mildly successful.
“Can I touch you?” Grace asked.
“You can do anything to me.” Simon assured him.
Grace didn’t hesitate. He trailed a soft hand over the muscles on Simon’s chest. “I want to examine your mouth again sometime soon, but I also want to poke around your gills a bit. Probably shouldn’t get saliva in there. Yet.” He corrected himself. “Not without knowing more about it first.”
It sounded like Grace was already planning more of this in the future. Simon couldn’t decide if he was scared or excited. Maybe a bit of both. After a moment of thought, he decided definitely a bit of both. Leaning toward more excited, though.
Grace moved his hand down and brushed over Simon’s ribs and then lower, over the ridges of the gills that had developed there. They flared in response. Simon hadn’t consciously made them do that.
“Fascinating.” Grace hummed. Simon liked being fascinating for Grace. The scientist grazed over the delicate protrusions a few times in a gentle but clinical way, and Simon’s mind was lost. He wasn’t too concerned with dragging it back.
Grace brought his other hand forward and pinched the edge of the lowest gill. Simon couldn’t hold back his gasp. Grace hummed softly again and lifted the fringe until it was raised uncomfortably high to reveal the spongy skin underneath. Simon couldn’t watch. He couldn’t stop looking. He was torn, rent in two with the need to push Grace’s inquisitive hands away and draw him closer.
Grace extended one elegant finger and intruded. Encroached on flesh that wasn’t supposed to be bared to the air around them. Conquered new sensations and drew forth interesting reactions. Simon’s mind fuzzed. It was pain. It was pleasure. It was somewhere in between. It was something he had never felt before and Grace was inside him. He couldn’t believe he had thought this would be anything other than the most intimate thing that had ever happened to him. He should have known Grace would drive him to new heights. He was all encompassing that way.
Grace played and Simon let him. He tried to keep his hips still where they were desperate to rock forward and find pressure against Grace’s bent legs. He didn’t want to get in the way of the other man’s curiosity and stop the probing fingers. He needed it to stop. He forced himself to remember why they were there.
“Grace. You have to stop.” He grunted through clenched teeth. The ridges of the fangs on the side of his face chafed together.
Grace reared back instantly, his hands held up, palms forward in surrender. Simon didn’t understand the severity of his reaction until he registered the pained and confused look on Grace’s face.
“No! No, not like that.” Simon blurted. He grabbed Grace’s arm desperately and pulled him back in. “I don’t mean stop like that. I mean you have to stop what you were doing because it’s too good. I’m going to get hard and then you won’t be able to see.”
Grace’s shoulders sank in relief. “Oh.” He breathed. “Well, we can explore that more another time. Let me see then. Take your pants off.”
Simon raised an eyebrow at him. “That was romantic.”
Grace blushed. “Well, of course I like this because it’s you, I just mean, uh…”
“Shut up, Ryland. I liked it anyway.” He interrupted before the blond could start rambling and followed orders.
He pulled his pants down and off in a swift motion to try and get his initial panic over with. He leaned back with a shaky breath. He allowed himself a moment to let his eyes stay closed before resolving himself to open them and see what Grace thought of the situation. He didn’t think he would be okay if Grace rejected him now, he was in too deep. He forced his eyes open and locked eyes with the scientist, bracing for disgust.
Grace was not disgusted. Grace was looking at him with barely restrained exuberance. Simon let out a breath of relief. He should have known, but the dread in his gut hadn’t allowed itself to be pushed away until he had proof.
Grace leaned in. “Well, hello, what do we have here?” He mused.
“I told you, I don’t know. It’s just like that.” Simon tried to pretend to be annoyed. He wasn’t, he was enamored. Grace had that effect on him.
Like that meant something Simon had never seen before. His dick was… gone. It was there, but it was gone.
“Holy moly.” Grace said. Simon felt the tension creep through his stomach again until, “I have no idea what I’m looking at, and I can’t wait to look at more. Can I get closer? Can I touch?”
Simon made himself relax again. Grace wouldn’t hate him. Grace liked that he was unusual. “You can do whatever, just. Do it.”
“Right yeah, doing.” Grace nodded and leaned closer. His breath ghosted over Simon’s chest and he shivered in response. “It’s a slit.”
“Uh huh.” Simon grunted, real eloquent.
“But I saw you, I felt you.” And that thought went straight to Simon’s dick. Which was…
“It’s inside.” He grunted.
“What?” Grace was beautifully baffled.
“My dick. Is inside. The slit.” He ground out. This was debasing. Grace didn’t seem to think so. He seemed enthralled. “I don’t know how it works. I don’t know why it’s there. It’s inside, and then it comes out, and then it’s gone. I’ve tried not to think about it too much and I haven’t really looked.”
Grace leaned closer. “You should. It’s lovely.”
Simon startled. He felt the heat blooming across his cheeks and chest. “Lovely?”
“Mmmhmm. Very pink. I like that.” He leaned closer. Simon couldn’t resist looking down at him, which meant looking down at his… something. “It’s a fish dick.”
“Hey!” That was the meanest thing someone had said when they were face to face with his dick. Or, not dick.
“No, I mean literally. This is what fish penises look like, or I guess only some fish. More usually dolphins and whales. Some amphibians and crocodilians I think, too. It’s a sheath. The penis comes out when you’re aroused, right? And then retracts when you’re done, only there when you need it? It’s evolutionary for protection in some species who need more defense for an intromittent organ or who need to maintain speed in the water.” Grace looked up at him with bright blue eyes, pretty enough to kill a man.
“The penis. Christ, Ryland. Call it my penis.” He chided. He liked being Grace’s experiment, but that didn’t mean he wanted to be totally mentally separated from this.
“I can’t call it my penis, I don’t have one. I couldn’t afford the surgery on a teacher’s budget in San Francisco." Grace sassed back.
Simon didn’t know what San Francisco was. He didn’t care. He couldn’t care about anything else, because Grace was reaching out to touch him.
He gently ran a finger down Simon’s slit the same way he had done to his gills earlier. “Ah!” Simon cried out. His breathing was already ragged. He couldn’t tear his eyes away.
“Oh, you’re sensitive. That’s nice.” Grace pondered. “Let’s learn more.”
He stroked softly over the seam. Wetness started to gather from between the lips. “Hm, I wonder.” Grace gathered a bit up and brought it to his pouty mouth. Simon wasn’t sure how he was supposed to survive this.
“You’re sweet. I like that.” He trailed his fingers, slick with saliva and something else down Simon’s chest again, back to where he wasn’t done exploring. “Let’s try…” He ran his finger over the swollen skin and then sank it slowly in.
“Mmmf. Grace. Shit. Wha, what are you doing to me?” Simon was going to shake out of his body. His legs were quivering. More wetness pooled between his legs.
“I’m fingering you.” Grace’s tone was dry and amused, like it was obvious. “You feel good around my finger. I’m going to add another.” He did. He promptly added a second finger and forced them in, spreading and opening Simon as he went. “I can feel you. You’re soft. And I can feel your cock, inside. That’s getting less soft.” The laughter in Grace's voice and sparking in his eyes was wicked. Simon was transcending. What was happening to him? In him?
“Can I…?” Grace shifted closer.
“I already told you, you can do anything Ryland. I’m yours.” Simon would be good for him.
Grace’s eyes darkened. “Okay. Anything.” He confirmed. He shimmied out of his shirt then tore his flight suit pants off. Simon took a moment to appreciate his small nipples, perched on lightly muscled pecs, then his attention was drawn down to where Grace’s own slit was pink and wet. He salivated.
Grace straightened and suddenly swung his leg over one of Simon’s, forcing him further back into the blanket. Their cores met in a messy slide that Simon hadn’t been prepared for. They both groaned at the same time. Grace threw his head back as he rocked down. He was so beautiful. Simon wanted to bite the juncture where his straining neck met his hard, chiseled jaw. Any further thought flew out of his head as Ryland ground his hips down a little harder in a mean little circle.
Their cunts slipped against one another. Simon couldn’t help the way he cried out, desperate and needy. He couldn’t tell where the wetness was coming from, Grace or him. They were soaked, their combined arousal making obscene noises that filled the air around them as Grace continued to work them together. Simon wanted to drown in it.
He was so sensitive. He couldn’t take much more. He had to. Ryland wanted him to. He felt himself getting hard. He didn’t want to watch. He knew Grace did. He had to, for Grace.
“Grace. Grace, hah, it’s coming.” Not the sexiest dirty talk he had ever come up with, but he was still covered in the other man’s arousal and the scent was going to his head.
Grace pulled back a little and watched with delighted awe plain on his face as Simon’s mutated penis slowly slid forward. Simon carefully watched his expression for any sign of growing hesitation or disgust. None came.
Grace craned his neck to look closer. “I bet if we timed that right, I could get you to slide right inside of me.”
Holy shit. Grace was actually trying to kill him. He was so hard he could barely spare a thought for the way he was a bit larger than before, the curve a bit more vicious. There were ridges that had never been there, and his veins were a little more prominent. His tip was leaking and angry, and most startlingly, pointed in a way that looked like nothing natural he had seen before.
“Simon,” Grace cooed. “Did you grow me a dick?”
What?
“What?” He asked out loud. That was too baffling for his question to stay an inside thought.
Grace grinned maniacly at him. “I told you I couldn’t afford a dick and you grew me one. That’s very thoughtful.”
Okay. That’s not exactly what happened but Simon could work with that. Anything to make Grace happy. “Uh, yeah. Sure. For you.”
Grace’s grin had a few too many teeth to be reassuring. Simon would know something about too many teeth.
“You said you’re mine right?” Grace asked.
“Yeah, Grace. Yeah, I’m yours.” He repeated. Simon had been Grace’s devoted servant since the moment Grace cleaned him up with a gentle hand and asked his name.
“You’re mine. So whose dick is this?” Grace hovered his hand over Simon’s leaking cock, but didn’t touch. Simon had to force his hips not to raise to meet him. He didn’t think Grace would like that, but he was having a hard time focusing.
“I’m yours. So it's, uh, it’s your dick.” He panted.
“Yeah, baby. Good job. That’s my dick.” Grace praised him. The dick in question jerked in response. “So touch my dick, Simon.” Grace’s words were sharp and commanding.
Fuck, fuck, fuck. Simon rushed to obey. He wouldn’t deny Grace anything, but especially not this. He had fisted it up and down quickly a few times before he even registered that this was the first time he had touched himself for pleasure since being changed.
“Talk to me, Simon. Tell me what my dick feels like. I want to hear you.” Grace’s voice was husky and authoritative.
Simon didn’t know where to begin. The ridges felt unusual to his hand, but every time he glided past them, spikes of heat ran up his spine.
“Its… hah. Good.” Simon managed to string together.
“No, Simon. You can do better than that.” Grace chided.
He didn’t want to let Ryland down. He forced his mind to focus. “Your dick is, uh, soft. It’s soft, but it’s hard. There are bumps.” He felt like an idiot.
“What do they feel like?” Grace questioned. His tone was professional, but his voice had a bit of underlying breathiness that went straight to Simon’s head.
“They’re not too big. It doesn’t get in the way of my hand moving at all.” The glide of his hand was probably helped along by the amount of slick that was covering him. He wasn’t sure if it was left from what Grace had coaxed from his slit before, what had come from Grace himself, or if it was leaking from his tip. Maybe a mix of all three. “It’s sensitive. I haven’t felt anything like that before. Like each touch is going deeper.” he continued, trying to make sense of everything he was feeling.
“Good. You’re doing much better now. Keep going.” Grace encouraged.
Simon fisted himself a few more times before he could make himself slow down and form a coherent thought to tell Grace. “The head is…”
“The head? Or my head?” Grace interrupted him.
“R-right.” Simon had to remember what would make Grace happy. “Your head is different. It’s soft like the rest, but so s-slick. There’s a point. I don’t.” He choked off with a gasp when he brushed his thumb over the wet slit at the tip of the point. His eyes slammed shut and he threw his head back.
“Yes. You’re being so good for me. Tell me what you’re doing. Keep talking.” Grace’s breaths were coming out in pants. Simon forced his eyes back open and was blessed with the sight of Grace using the fingers that he had inside of Simon earlier on himself. His wrist was moving slowly, but with intention. Simon moaned. He wanted Grace to touch him, too. He had to make Grace happy first.
“I’m touching your tip. I’m being gentle for now because I’m trying to figure out what’s new. I don’t want to hurt it… you.” He reported.
The sounds Grace was making were distracting. High pitched whines in the back of his throat. “It’s okay, Simon. You can be a little more rough with my dick. I like it. I like it when you’re rough. I like watching you touch it.”
Simon was helpless to do anything but abide. He tightened his grip and moved a little faster. It was overwhelming. Grace was overwhelming. It was amazing and agonizing all at once.
“Can I feel it?” Grace asked. “I’m curious about the ridges.”
Simon nodded. He wondered when Grace would get it through his head that anything meant anything. Simon was his entirely. He could do whatever he wanted and Simon would thank him for the privilege. He expected Grace to reach out and touch him. He should have known Grace would never do what he expected. Grace pitched his whole body forward, arms on either side of Simon’s body, and sank onto him in one swift motion.
“Fuck!” Tore out of his throat. Holy fuck. Grace was, he was, fuck. Simon had no words to explain the devastating feeling of Grace on his cock. Grace’s lithe body was over him, surrounding him, engrossing him. Grace cradled him and let his body relax until they were flush, hips to eager hips. Simon had never felt so complete and so torn apart.
“Oooh, that’s good.” Grace said. “Yeah, I see what you mean. I really like the ridges.” How was his voice still so calm? So objective? How was he still forming coherent thoughts? Simon was wrecked.
Grace spread his knees a bit further apart and settled his hands on Simon’s shoulders for support. Grace rolled his hips with more purpose. Simon held on for the ride.
“Grace. You feel so good. I can’t.” He was getting close much too fast again. Being with Grace seemed to have that result for him.
“You can. You can because I want you to.” Simon wasn’t sure he could, but he knew he had to try for Grace. He just felt too good. Grace was fucking onto him with such a single minded focus that Simon felt like he was tangential to the experience. This was for Grace. He was there for Grace to discover and dissect and wring his own pleasure from. If Simon managed to feel good in the process that was just a perk. He loved it. He could be anything Grace needed.
“That’s right. That’s it.” Grace’s movements were becoming frantic. Simon’s hips were thrusting up without deliberate purpose, feverishly trying to match the pace that Grace was setting for them. “Take it, take it. Take me. You’re doing so good, Simon.”
Simon liked being good for Grace. He nipped at the skin of the other man’s jaw that he had admired earlier. Grace appreciated that loudly. He brought their mouths together in a dramatic clash of teeth and tongues, one longer and more pointed than natural. Grace seemed to appreciate that, too.
“You close, baby?” Grace asked. Simon couldn’t string his voice into anything but pleading sobs, so he nodded in confirmation. “I am too. Just hold on a little longer. I’m so close.”
Simon whimpered. He wanted to be good. He wanted to obey.
“Mfhn. I’m so close. I’m right there.” Grace was frenzied, the muscles of his abdomen flexing tantalizingly as he brought them together again and again. “Help me. I’m almost there, help me. Touch my dick.”
Simon looked down, bewildered at how he was going to manage that. His dick, the dick Grace had claimed as his own, was a little occupied. Then his eyes were drawn to the stiff bud at the top of Grace’s entrance, pink and swollen the way Simon’s tip had been. Saliva flooded his mouth. Grace was going to be the death of him. He wanted nothing more than to touch it, to give Grace the pleasure that Grace was granting to him.
He tensed the muscles in his stomach so he could continue supporting them while he brought his arm forward from where it had been braced against the ground holding them up. He passed his thumb quickly over his pointed tongue to wet it, then moved it down to where Grace was shivering over him. He pressed his thumb firmly to Grace’s nub in a few harsh circles, and felt him shatter.
He wasn’t sure which one of them broke first. Grace was keening, hips stuttering and grinding down. Simon’s hand fisted in the flesh of his hip to pull him closer. His vision whited out and he spent an eternity coming, pumping pulse after pulse deep inside his savior.
When he came back to himself, his cheeks felt tingly and numb. His back was flat against the blankets beneath him. Grace was laughing lightly above him, fluttering walls sending tremors through his whole body where Simon was still seated securely inside. He held Grace close and basked in the feeling of being safe and wanted.
For a moment he thought Grace was moving away and tightened the grip he had on his waist, but Grace was still. They both looked down and Simon’s dick was retracting, slowly sliding back into his body and folding into the ridges in his skin it had come out of, still covered in a thick wet glaze of semen.
“That is so fucking weird.” Simon said.
“That is so fucking hot.” Grace responded. Simon startled. It was unusual to hear Grace swear, but he guessed if any moment warranted it, it was this one. He started laughing at the absurdity and the endorphins rushing in his blood, and Grace joined a moment later. He had never been so relieved and happy. He had been half in love with Grace for weeks, and he had been so nervous the other man wouldn’t be able to accept him for his past, or for the weird body he had now. He didn’t really think he was human anymore, not fully, but Grace had made him feel human again through their connection and bodies. He was a miracle.
They sat there splayed out together catching their breaths, sloppy and shaking and sated. Simon reveled in the fact that he had once thought he wouldn’t even survive the Iron Lung, and now he was come drunk with a pretty man splayed across his lap. Life was full of surprises.
Grace eyed Simon’s slit, wet with their shared release, and the glint in his eye hadn’t abated at all. “That’s one way to get my come inside you. Hot.” Simon sputtered. “Give me a minute to catch my breath and then I want to eat it out of you.”
Yeah, life was full of surprises. Literally everything that came out of Grace’s mouth being most of them.
