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solarisrasa · 2 years ago

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Two Feet, More or Less

A bit of Malec Smut feat. poorly planned pranks with shrinking potions.

Rated M for obvious reasons. Includes a brief touch of dysphoria/body discomfort.

When Jace asked about the shrinking potion, amidst a hundred questions about the contents of his apothecary, Magnus hadn’t given it much thought. He’d only stressed the importance of ensuring one also had growth potion on hand, just in case. The ensuing conversation about the dangers of growing one specific part of the body didn’t bear repeating anyhow.

When he noticed the innocent little bottle of gray liquid was a little emptier than he remembered, he sighed and made a note to double-check Sherman’s well being. He never thought that Jace would use it on his own parabatai.

Alexander, notably supposed to be in a meeting, threw open the apothecary door with a murderous expression. Magnus, not a man often cowed and never on the receiving end of his darlings full temper, started.

“Alexan-”

“No. Don’t- don’t you-” but Magnus could see that his anger was already fading and it made his heart clench. Alec never could stay mad when they were in the same room, not unless it was serious. It was an affliction they both shared.

It occurred to him, watching as Alec’s angry expression smoothed into simple exasperation that the face he so loved was at least two feet lower than it should’ve been. Oh. Jace.

“Darling, you’re a little,” Magnus was trying not to smile, especially as Alexander stalked over to him and it became clearer, but he failed, “well, little.”

“I’m going to kill Jace.”

Magnus was a strong man but he couldn’t let that one go, “Well, when you can reach him again.”

Alexander’s glare had not dulled, if anything the new angle made it appear sharper.

“I’m sorry, Alexander, but you have to admit it’s a little funny.”

“Magnus. Clary is taller than me right now. Clary. ”

Magnus grinned, “I’m sure she enjoyed that.”

“Yes, everyone took pictures. I feel ridiculous and so out of sorts it’s not…” Alec bit his lip and some of the humor went out of things as Magnus watched him shift uncomfortably before stepping with far more care than normal to get closer.

“By everyone?”

Alec cleared his throat, “Alright, not everyone. Jace didn’t want to actually hurt me or my-don’t you dare- my standing. No one important saw me. Just family, and Simon. And Underhill but he honestly just looked frightened.”

Magnus laughed, concern easing a bit, “He probably thought it was a sex thing gone wrong or something and is worried what Lorenzo’s going to ask from him.” He gave Alec a gentle look, noting the distance that remained between them, “Are you alright?”

Alec looked down, and like this Magnus truly couldn’t see enough of his expression to know what he was thinking. He raised his hand, ready to snap the growth potion up and draft a very pointed speech for Jace about boundaries, when Alexander spoke.

“I’m alright. I don’t think I’d like most people seeing me like this and I wouldn’t have chosen it myself but,” Alec took a deep breath and closed the steps between them before looking up, “there is one benefit I didn’t think of.”

Magnus’ breath caught as he looked down at his husband. Like this Alec would fold into his arms in a way his taller self didn’t, like this he could surround him completely if he wanted. He loved Alexander as he was and he didn’t think he’d like Alec to be so much shorter for long, but right now?

He opened his arms and Alec stepped into his hold, hands tightening in the fabric of Magnus’ linen shirt just under his shoulder blades. Magnus melted a little, feeling how Alec pressed his cheek against his heartbeat and relaxed.

“How long until it wears off on it’s own?”

Magnus hummed and curved his arm to card through Alexander’s hair, “Given how much Jace used, not more than a couple hours.”

Alec’s shoulders tightened and Magnus started to pull away but his husband’s grip tightened, “Can we, uh, can we just go to bed early?”

“You don’t want the growth potion?” Magnus checked, leaning away enough to see more of Alec’s expression. He looked a little embarrassed but certain as he shook his head.

“Alright. Then allow me.”

Magnus moved quickly and scooped Alexander into his arms. He’d carried him before, short distances or when he was injured, but this was different. Alec was solid but he was lighter, smaller and Magnus didn’t need as much aid, both from Alexander himself and his magic. By the hitch of Alec’s breath and the way his husband curled into him, those differences didn’t go amiss.

He didn’t say anything about it but they had barely made it into the living room before Alec was leaning up to press open-mouthed kisses against his collarbone, tugging the loose neckline of his shirt out of the way. Magnus shivered, prepared to continue to the bedroom until Alec laved his tongue over Magnus’ pulse point, using Magnus’ shoulders to pull himself close.

He groaned and moved them so Alec was pressed tightly against one of the pillars, his legs wrapped around Magnus’ hips. It was a position they’d been in before, but with several key differences. For one, Alec didn’t have to duck awkwardly to kiss him or bite at his throat and his heels brushed new places on Magnus’ body. The thing that took the low heat in Magnus’ blood and burst it into an inferno though, was how Magnus’ body blanketed Alexander’s fully. The potion had reduced all of his proportions and he fit snugly between the wall and Magnus.

“Alexander.” Magnus breathed, tilting his head as his husband worried marks over his throat. His fingers flexed against Alec’s hips and he adjusted them so the angle gave them both more friction. Alec made a strangled noise and thrust against him with a loud groan.

“You’re...fuck.” Alec mumbled, biting at his collarbone again, “You’re so big.”

And oh, but didn’t that twist into something hungry and alive in Magnus’ stomach.

“Do you want more?”

“Please. Like this Magnus, just like this.”

Magnus was happy to oblige, snapping away most of their clothes to rut against his husband, letting his cock drag against Alec’s thighs, his cock. Alec was panting into the searing kisses Magnus dropped against his lips, sucking at his tongue and moaning as Magnus used his hold to move Alec’s hips.

Magnus couldn’t force himself to let go of Alec, especially after he snapped away their underwear and could see the way his fingers fit into the curve of his hips. He was mesmerized by the way that Alec’s body surged against his at the slightest guiding pressure of his grip and the way that Alexander flushed and moaned.

“Magnus, please. I-I want...you’re so much bigger.”

He was right, Magnus thought, half-delirious. Like all of him Alec’s cock was smaller, still beautiful and still proportionate but beside Magnus’ it was clear how Magnus might feel inside his husband.

“Hush love, I’ll give you what you want.” His magic rushed to his aid, both to ease the strain on his arms from holding Alexander and to tease over his hole. Alec made a noise like a wounded animal and tried to push back into the feeling. The brick facade at his back stopped part of the motion and Magnus’ firm hold stopped the rest, leaving Alec to make desperate sounds into Magnus’ throat as he returned his mouth to the hot skin there.

Magnus guided his magic to open him quickly but not so rapidly that the sweet burn of it didn’t leave Alec half-begging for more. As soon as he was confident it wouldn’t hurt Alexander, Magnus lifted him higher, relishing the way that Alec’s legs spread around him and tightened in anticipation. He slid into the tight heat of his love’s body and watched as Alec’s mouth fell open around a choked breath.

“Gods.” Magnus moaned, pressing his forehead to Alexander’s hair and listening to his husband sigh happily as they adjusted. Without his magic, Magnus was certain they would’ve fallen by now.

Magnus rolled his hips and Alexander clutched at his shoulders. As he drew back and snapped his hips Alec chased the feeling of fullness, “Please, Magnus, fuck...fuck I was right...you’re-”

Magnus snapped his hips forward and immediately had to pause to get ahold of himself. The movement alone had bounced Alec and that was...it was a lot.

“You’re so big like this.” Alec whispered to him, sounded awed and overwhelmed and what little control Magnus had clung to snapped.

He lifted Alec high enough that he could fuck into him properly, leaving Alec to cling around his shoulders, heels scrabbled at his back as he set a filthy pace, listening to the sound of their bodies meeting and Alec trying to speak nonsense as Magnus fucked him.

The drag of Alec’s cock against his stomach added a point of heat between them and with a simple clench of Alec’s body as his nails dug into Magnus’ shoulders, Alec came between them, nearly sobbing out Magnus’ name.

It took only seconds for Magnus to follow after, overwhelmed by the hot clutch of Alec’s body and the trembling of his husband in his arms.

After Magnus laid him down in their bed and cleaned him, first with magic, and then with a warm cloth, too soothe more than anything since the majority of the mess was gone. He didn’t say anything for a long while, letting Alec lay with his eyes shut. When he finished and Alexander still didn’t open them, though he was certainly awake, he climbed into bed and summoned a light snack and water.

“Are you hungry?”

“A little” Alec didn’t look.

“Alexander-”

“I don’t-” Alec shifted against their sheets, “I don’t want to see myself.”

Magnus didn’t know what to say in the moment. Had Alec not wanted them to take things as far as they had? Magnus knew he was uncomfortable he shouldn’t’ve-

“I loved being surrounded by you like that, but I don’t want to look at myself and see. I don’t think I could handle it right now. It’ll make me feel like...not me? Does that make sense?”

Magnus touched the tips of his fingers lightly to Alec’s cheek and smiled gently, he should’ve thought about that, he supposed.

“You feel wrong-bodied when you see yourself right now?” Alec nodded, “That’s perfectly understandable Alexander. Let me help you eat a little and then we can sleep. You’ll be set to rights when we wake.”

Alec gave him a smile that could’ve melted stone and Magnus pressed a kiss to it, helpless.

In the morning light Magnus found himself curled against all six plus feet of his husband and he hummed happily. Alexander dropped a kiss on his forehead.

“You won’t want me to do that again will you?”

Magnus scoffed, opening his eyes to meet Alexander’s hazel gaze, “I’d love you at five foot nothing as much as I love you now, but no. I prefer you as yourself, comfortable with me naked and tall enough to make shower sex difficult.”

Alec gave him a playful glare, “I don’t know why you insist on trying ridiculous positions when there’s water involved.”

Magnus smacked a kiss to his cheek and slid out of bed with a wink, “Adventure, love! Don’t worry, I’ll spare you this morning, we had plenty of adventure yesterday.”

Alec smiled at him where he had relaxed back into golden pillows, “If there’s anything else in your potion stash you’re thinking about “adventuring” with, please don’t let Jace be the one to deliver them.”

Magnus rolled his eyes, but paused to give Alexander a long look.

“You sure you’re okay?”

Alec seemed to sink further into their bed, happy and soft in the warm light of mid-morning, “I’m sure. Thank you for taking care of me.”

“Always.” Magnus blew him a kiss and watched him purse his lips to mock catch it.

“Go, shower. I’m going to lay here and be grateful for my body.”

Magnus grinned, “Well...if you join me we could be grateful for it together?”

“Magnus! You promised!”

“Now, now. Alexander, I never said I wouldn’t try. Besides, not everything requires crazy positions and I’m feeling like a breakfast appetizer.”

Alec’s scandalized expression made him laugh the whole way into the shower, though not as hard as the disgruntled but expectant look he got when Alec joined him a moment later.

#Malec #Malec Fanfiction #malec smut #smut #Magnus Bane #Alec Lightwood #Shadowhunters #Potion mishaps #Two feet more or less

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