Work Text:
"Brother, I think I'm sick"
Alphonse whined, stumbling into his bedroom. Before Ed even saw Al, he smelled him. Ripe mango, tooth-rotting sweetness with an aftertaste of something acidic.
Shooting straight up in bed, Edward was met with the sight of his half-naked brother, drenched in sweat. His cheeks were flush and his small frame trembled.
He stared for a moment, awestruck at the sight before him. Alphonse looked beautiful… and miserable.
As if to confirm his thought, Al whimpered and wiped the sweat off of his face. Edward could smell the distress mixed in with the intoxicating cocktail of desire.
After staring for a few moments, Edward realized he hadn't said anything.
"Al, come here. You're not sick, it's okay."
As if a weight had been lifted off his shoulders, Alphonse collapsed forward and into Ed's arms, his lower limbs quickly following. Within seconds, Al was curled up in his lap, his scent stronger than ever. A swear escaped his lips as he shifted his little brother in his lap, making sure he didn't feel his swiftly growing erection.
The good news: Alphonse didn't notice his hard-on.
The bad news: he all but shoved his face into Ed's neck, nuzzling and kissing his scent glands.
His brother was going to be the death of him. And honestly? He wouldn't mind going out that way.
Edward was an alpha. He should be asserting himself right now. He should be fucking Al as quickly as he could to take away the pain. But he doesn't want to.
Submissively, he tilted his head to the side. Alphonse took full advantage and snuggled in closer. A quiet sob escaped his lips and Ed rubbed his back.
"Al, how do you feel?" He asked.
"Terrible. Everything hurts."
"Everything?"
"Everything. My muscles ache and my head won't stop throbbing. My nose burns -well, it stopped just a second ago- and…" Alphonse stopped himself. His face turned a darker shade of red.
"And what?" Edward verbally encouraged.
"My bottom… my crotch. It hurts the worst. On the inside, I keep getting cramps." He slurred, his words slowly melting into one another.
It all lined up. Of course, he knew what was happening the second Al entered his room, but it was nice to have confirmation.
"Okay, thank you for telling me," he praised, "you're in heat right now."
It took a moment for the information to slip into Al's mind. "Oh," he replied quietly, "what should I do?"
The question took Ed off guard. "Um… whatever you want. If you want to build a nest you can, if you want me to take you to a heat room-"
"No!" Alphonse cried, letting out a distressed scent. Edward reached a hand up and rubbed his back. "Shhh, it's okay. I won't take you anywhere." Unfortunately, it was too late. The idea had wedged itself inside of Al's mind and he began to cry.
Ed cursed himself, he should have known better. Of course, Al would be more sensitive and nervous. "Al, I'm sorry. I promise I won't leave you." He whispered, holding his little brother closer. In response, Al began to rub against his leg. It took everything in his power not to fold him in half and fuck him. He let Al grind against him, even adjusting his leg so he could get a better angle. But in the end, he let out a frustrated cry and went limp.
His heart broke watching Al struggle so much. "You used to read books about second-gender husbandry, how much of that do you remember?"
Alphonse stopped to think. "None… I'm still getting memories back." He pouted. It wasn't surprising to Ed that out of all the memories Al lost, books probably weren't at the top of the list. Before the transmutation, they'd learned almost nothing about second genders.
"It's okay, I've got you. I'll help you through this." Ed reassured him. Alphonse nodded and buried his face back into his older brother's neck. Barely a moment later, his hands shot down to his crotch. He sobbed as he clutched himself, doing his best to ride out the waves of pain.
Ed was quick to sit up and comfort Al, pulling him onto his lap, chest against back. When the cramps settled down, Alphonse fell limp as tears flowed down his face. Ed wiped them away with his thumb.
"Al, do you trust me?" He asked. Al nodded. "Is it okay if I touch you a bit? I just need to see something." Alphonse nodded again, eagerly positioning his body so he was more open. Edward had to fight off all the urges that came to mind after seeing Al show himself so willingly.
Reaching a hand down, he inserted it into the hem of his underwear, grazing his thigh and reaching the crease where his most sensitive area lived. His thighs were already doused in slick, his underwear completely ruined. Alphonse keened at the touch, whining desperately. Encouraged by his reaction, he shifted his hand over until it was hovering over Al's pussy. Gently, he caressed the outer folds of his labia.
"Ohhh!" Alphonse moaned, arching his back so his head lay across Ed's shoulder. Taking quick advantage of the situation, he leaned down to kiss Al's neck. His little brother gasped and turned to putty in his hands.
The pad of his finger circled Al's entrance, waiting for permission. He didn't have to wait long, as only a moment later Al was crying for him to do something. His finger slipped in easily, slick squirming out around it.
"Ah… brother…" He whimpered, bucking his hips. Edward hummed in response, slowly pumping his finger in and out. He felt his ego rise, knowing how much his brother trusted him. It was incredible how quickly Al became mush. He'd almost forgotten about his boner, his mind so obsessed with Al's every movement. He shifted in Ed's lap, grinding his ass against it.
This time, Al noticed too, and he wasted no time trying to grab it. Within moments, Al had pulled Ed's hand out of him and turned around, gripping his hard-on through his clothes.
"I want it." He said firmly, almost demanding it. Before he could even respond, Al grabbed onto his waistband and attempted to pull his pants off.
"Woah! Al, slow down." He instructed, pushing him back. The most pathetic whine escaped Al's mouth. The feeling didn't last long, however, as Ed lifted his butt off the bed to pull his pants and boxers off in one movement. No sooner had the garments hit the floor than Al was lunging forward, gripping Ed's warm cock in his hand and staring at it.
He took a moment to just observe, before leaning down and licking the bead of precum off the tip.
"Fuck," Ed moaned. Al hummed in response as he took the head into his mouth, gently sucking on it. He could feel the tightness in his gut grow and knew if this continued he'd come prematurely.
"Al," he called, trying to get his attention. It didn't work, instead encouraging his little brother to take his dick further into his mouth.
"Al, stop," he said unconvincingly. Al once again refused.
Edward grabbed a handful of his hair, gently pulling Al off his cock. His lips were bright red and swollen. He wanted nothing more than to reach down and bite those lips. He didn't get the chance to, however, as Al yelped in pain. He doubled over, grabbing his crotch.
"See? You should have stopped earlier." Ed scolded. Al looked up with big, beautiful eyes, his pupils dilated so only a ring of gold was left on the outside.
"Sorry," he whispered.
"It's okay," Ed reassured, lifting his chin with two fingers, "there's nothing to apologize for. Let me knot you, it'll take away the pain."
Alphonse nodded excitedly, spreading his legs to give Ed a view of his dripping hole. He wasted no time reaching forward to remove Al's shirt, pulling it over his head and exposing him completely. His rosy nipples were erect from the stimulation. He guided Al to lay on his back, he wanted to see Al as he fucked him.
"Good boy. So good for me," Edward cooed, leaning down to nip at Al's neck again. The omega squirmed and grabbed Ed's hip, trying to pull them closer.
"Brother! Just fuck me already!" He yelled.
Edward pulled back in surprise. "Watch your language," he muttered hypocritically. Taking a deep breath, he grabbed his cock in his hand and lined it up with Al's entrance. He heard Al underneath him take a shuddering breath. "Ready?" He asked.
"Yes. Do it," Al instructed.
Ed pushed in excruciatingly slow. Al was tight but welcoming, offering no resistance to the intrusion. Alphonse let out the most incredible moans, sending shivers up his spine. Once he was fully seated inside, he waited. Mostly to regain his composure, as he had come very close to knotting Al before he even got the chance to fuck him.
After a moment, Alphonse began to get impatient. He whined and gripped Ed's back, leaving light scratch marks in their wake. Encouraged by his whimpers, Ed pulled out before pushing back in. Al's eyelids drooped and his eyes rolled to the back of his head. Taking that as a positive, Edward began to set a pace, slowly increasing over time.
Al lost all muscle control, his arms falling to his side as he experienced full pleasure. "Can I kiss you?" Edward asked breathlessly. He knew he was getting close and wanted to knot his baby brother while kissing him at the same time. Instead of verbally responding, Al's mouth parted, inviting Ed in.
He wasted no time closing the gap, his hips thrusting faster and faster as he shoved his tongue down Al's throat. The soft slap of skin on skin drove him wild. The tight coil in his stomach returned and he pulled back to whisper, "I'm gonna come."
Al all but disregarded the statement, chasing Ed's lips with his own until they were connected again. Alphonse moaned into his mouth, nipping at the corner of his lips. Ed's pace started to falter as he returned the moans.
Finally, only three thrusts later, he came inside of Al, followed closely by his knot, locking Al in place. Al's vagina squeezed around his cock, milking him for all his worth. He was the first one to break the kiss, flopping his head back on the pillow and breathing heavily, trying to catch his breath. All his limbs went limp as he took deep breaths through swollen lips.
"Was that good?" Ed asked, stroking Al's golden hair.
"Mmmm," Al responded, his eyes closing. Edward chuckled as he grabbed Al's waist, maneuvering them so they were both on their sides, facing each other. Al grunted in discomfort- as they were knotted together- but Ed kissed his forehead in reassurance.
It took only a few moments for Al to fall asleep. He snored quietly, his hands wrapped around Ed's body. Edward stayed up until his knot deflated, gently pulling out once it did. Al whimpered but didn't wake. He reached down and pulled the blankets around them, tucking them both in.
Planting one last kiss on Al's forehead, he snuggled in and whispered, "Goodnight, I love you."