This is the Sabriel ABO that is based off of my "Violet Hyena's Alpha/Beta/Omega Universe" meta (it's it's not really from any fandom I don't think I could really post it here on FFNet. But I put a link to it in my Profile and it leads to my AO3). I'm mostly using Sam and Gabriel to represent most of the aspects of that world, but it's been very fun so far.

Mind you, this is a universe where sexes may change, and that's why it's labeled M/M AND F/M. That does mean that Sam will have a vagina for a while, and there will also be some vaginal sex. There is no mpreg because there is mentioned regular pregnancy (with the uterus and all). discretion advised if you're squeamish about genitalia descriptions in a chapter in the future.

The sex won't be for a while. I'm going to be checking back on my tags, but I've tried to put as many as possible. :) Enjoy.

Summary: Sam just presented as an omega for his first heat-season. He's not sure if anyone would like a masculine omega such as himself, but Gabriel shows him how wrong he is by courting him. Their relationship takes some very interesting dips and turns throughout the year. Finally, when heat-season rolls around again, they spend it together. Hopefully, they'll spend it together the next year as well.

Tags:Alpha/Beta/Omega Dynamics, Omega!Sam, Alpha!Gabriel, sequential hermaphroditism, Temporary Sex Change, seasonal heat, Mating Cycles/In Heat, mentioned pregnancy but not applied, Alternate Universe – Human, Anal Fingering, Vaginal Fingering, Vaginal Sex, Cunnilingus, mild fight scene between alphas, Consensual Sex, Rough Sex, Bondage, some blood is drawn


First day of Winter – December 21st

"Finally, Winter." Dean breathed deeply into the chilled air. December 21 st was the thing they looked forward to the most during autumn. The chill was settling into the earth and the scent of dead leaves was turning to the scent of metallic cold. Sam smiled and nodded, walking beside his older brother. A lot of people were out, stretching their limbs. The end of heat-season was always celebrated with the opening of shops and being free of the demands of their bodies. Sam was holding his youngest brother's hand in a firm grip. Adam was very restless and eager to get ahead of them to get to their destination; but who could blame him, he was a 7 year old pup and heaven forbid he go a week without going to Trick n' Treat's for their famous cupcakes. Their sister, Charlie, was walking beside Dean, her hand on his shoulder as she was on the rock wall beside the sidewalk. She was 13 and a little bit more self controlled than Adam.

Trick n' Treat was the local morning hotspot for the best pancakes in Kansas. But not only serving breakfast, the owner also had it as half a bakery. It was an amazing hit after Gabriel Shurley took it over 5 years ago. It used to be a dying bakery that sold boring cookies and cheap sheet cakes. Gabriel always closed it for heat-season, but as soon as Trick n' Treat opened it back up in winter, well, they had to get there early or they'd be waiting for a seat forever.

The shop was lit up in the darkened morning light and there were already several people pacing around 10 minutes before opening time. Charlie was still little and skinny enough to get away with climbing on Dean's shoulders at the end of the rock wall and Dean grunted as her boot kicked him in the chin.

"Easy, Charlie, you're gonna dislocate my jaw," Dean warned as he rubbed his chin. Dean was 21 and fit, so it wasn't like he couldn't still be a climbing tree for the little red head in pigtails. It was more amusing when she wanted to ride on Sam's shoulders. He was 17 and skinny, but he could still do it.

"Sorry." Her hands found his hair a suitable place to rest. Her feet kicked eagerly as her eyes could fixate on the colorful cakes through the glass window of the shop. Sam chuckled.

"You'll be a fine Uncle-beta when you grow old, Dean," Sam half complimented and half scorned, because he knew Dean loved the job, even though he pretended not to.

"Shut up. At least I won't be bending over once a year like a bitch," Dean grumbled and Sam threw him an unamused glare. He knew Dean wasn't a morning person, especially after heat-season. Dean had been looking forward to being an alpha, but age 20 came and left and Dean was still a beta.

"Okay, then I'll have to find someone else to babysit when I have kids," Sam said and kept an eye on Adam as he and several other young kids gathered at the door, looking in at all the staff who were setting up inside. Dean immediately looked unsure; maybe a little uncomfortable.

"Oh come ON, who else would you get to babysit during heat season?" Dean protested without really admitting he was wrong.

"Well, there is Bobby." Sam couldn't help but smile at Dean's stressed face.

"Dunno, Bobby's getting old," Dean said quickly. "Obviously I'd be a fine babysitter as your older brother."

"I'll think about it," Sam said. "It's not like I plan on having kids right away." Dean grumbled and looked up at Charlie.

"Looks like you're going to have to be the alpha of the family, Charlie," He told her. A perky smile appeared on her face.

"Okay. Then I can get a girlfriend, right?" Charlie asked.

"You bet ya. You can sniff up all the girls you want." He told her. Charlie bounced on his shoulders, grinning.

"Awesome," she said. Sam smiled and saw one of the employees waving to the kids, who all waved back. Sam recognized it was Garth, probably one of the happiest betas in the world. Garth disappeared from the window and came back, to all of the hopping kids' delight, with a tray of Trick n' Treat customary mini corn muffins. The door was opened and before Sam's little pack could enter, there were only 3 muffins left.

"Hey, Garth," Sam greeted. Charlie happily took a muffin from Garth before she was promptly set on her feet because they were indoors.

"Happy Winter!" Garth offered both Sam and Dean the remaining muffins but they waved their hand since they were actually there for breakfast. Small families were being seated and colorfully dressed waitresses were taking orders. "It's good to open shop again." He took a deep breath, as though taking a huge breath of happiness. Sam wondered a lot of Garth had some sort of happy pill that he horded for himself. Maybe he took suppressants that were only supposed to be used for omegas in heat. "I wish this place was open year round."

"I think you'd explode if this place was open year around," Dean said as he corralled Sam, Adam, and Charlie to a booth.

"Then who would make mini muffins for the kids?" Garth asked before he finally did his job and gave them menus. They ordered without needing much more than a quick glance at the special's menu. They'd been there far too many times and knew what they liked. Even though Adam insisted on looking longer than necessary, but Garth was able to distract him with crayons and a coloring place-mat.

They ordered; Pig n' a Poke, Peanut Butter Banana pancakes, two orders of buttermilk pancakes, two cups of coffee, and 2 cups of hot cocoa. Coats were shed and Sam reveled in the comfort of a familiar place. The seats were comfortable, the atmosphere lively, the decorations campy as hell, but it fit Trick n' Treat. He'd had an unexpectedly eventful heat-season and he was looking forward to something familiar and delicious rather than ration sized protein bars and water.

"So..." Dean tapped his fingers on the table, looking at Sam as they waited for their order to be made. They got their drinks lickity-split, but the rest could be smelled from the kitchen area. Adam was very entranced by coloring a T-rex the perfect shade of marigold yellow and Charlie had pulled out her 3DS that she basically worshiped since hitting puberty. "What's it like?"

Sam took an extra long moment to drink his coffee. He wasn't exactly surprised Dean asked. He was maybe more surprised that Dean had waited so long to ask. And it was understandable because Dean never went through heat; he was a beta.

"It's... interesting." Sam shrugged and Dean gave him a partial look of annoyance. "What? What do you want me to say?"

"Interesting isn't exactly descriptive," Dean said. "I mean, come on, we've both read the damn pamphlets on what to expect when someone presents. Was it really as bad as they say?"

"It's not bad ." Sam shrugged and thought over being in a solitary room with little company besides a toy. He'd been on mild suppressants so perhaps it wasn't AS bad as it could have been. But he just pined for what he wanted and did his best to satisfy himself without anyone else. He had made the decision when he was 14 that he wanted to be solitary when he presented, because he wanted to know what his body would do. "It's different. As in, I wasn't thinking rationally." He thought over some embarrassing moments, such as basically caterwauling at a door when he did want to see how bad full heat could be. When he realized what he was doing he immediately took another suppressant and willed it to take effect quickly. "You lose track of time. The body takes over and well... yeah, you only think of one thing when in heat." He shrugged, not wanting to give too much graphic detail because Charlie was giving him curious looks occasionally. "Um... but, I guess if you're asking if it's as mind consuming as people say, then yeah, it is."

Dean took a long drawl of his coffee before he said, "It's just hard to imagine you, Sam Moose Winchester... you know, not an alpha."

Sam nodded a little. He knew it was odd. The ideal omega was a woman with shapely curves and wide birthing hips. If anything, Sam had always been regarded, and predicted to be, the ideal alpha. He was tall and lean with muscle "I know. The wonderful surprises of nature. I already had the omega talk with mom."

"Great." Dean shrugged with little care. Sam fiddled with his cup. His recovery time was mostly spent texting and calling his mother. It wasn't so much that he couldn't go see his mother two weeks after heat, it was more because he was still tired and no one really wanted physical or eye-to-eye contact after THAT much physical exertion. That and the fact that both of them were dealing with the joys of menstruating. It was probably one of the weirdest, yet calmest conversations he'd ever had with her. He'd waited longer to call Jess though.

"I broke it off with Jess." Sam said quietly. Dean blinked, surprised, but Charlie's 3DS snapped shut.

"No ." she said in surprise. Sam gave her a helpless shrug.

"It happens, Charlie." Sam told her, trying to ignore the fact that they'd all pretty much been counting on him being an alpha to continue the relationship. They'd started dating earlier that spring, but it couldn't be a serious relationship with him still being a beta at the time. He'd always had the 'what if' in the back of his mind and never could bring himself to buy her a courting gift. At least he knew why he'd been so cautious to be with it now. Two omegas being mated? It was not a thing either of them wanted. He knew Jess had been waiting for him to present and be an alpha. It just didn't work out. The tragedy was that Charlie had basically had a huge crush on Jess.

"But she was perfect." Charlie pouted.

"She was nice," Sam agreed slowly. Maybe he and Jess could have continued dating in the off-season, but he knew, deep down, it wasn't what he was looking for. Jess wasn't looking for that either.

"Sam's just going to have to find an alpha that's willing to put up with his bitchiness." Dean shrugged. Sam rolled his eyes. Dean was still not over the omega teasing since he'd found out. "But seriously, condolences." Sam nodded and sighed. He couldn't imagine trying to go through heat with another omega. He didn't think he'd have the mind to break out of the trance of 'fuck me now' to pleasure someone else. It wasn't like when he was out of heat. They'd messed around in the off season; lots of kissing and snuggling, but the sex off-season was NOTHING like heat.

"If you become an alpha, you can court Jess, okay Charlie?" Sam offered and Charlie brightened up a bit. "I won't hold against you if you did. But you have to present to be an alpha." She nodded.

"Okay," she said and turned back to her game.

"Winchester special~" A familiar voice sang as a tray stool was set up and their order was set upon it. Sam blinked because it was not Garth with their order but the owner, Gabriel.

"Did Garth tell you we were here?" Sam asked as Gabriel started giving out orders. Gabriel was more than familiar with them. Sam and Dean had known Gabriel since before he opened the Trick n' Treat. Gabriel started as a waiter there. He and Dean became fast friends over their taste in style and music. He was a jerk like Dean most of the time. He often played his pranks on Sam and teased him about his height when he was getting taller than Gabriel. But there was always an underlining affection that Sam was always warmed by. Sam tried to think of him as another brother growing up, since Gabriel was an alpha and Sam presumed, like everyone else, that he would be as well. But Gabriel was anything but a brother. He wasn't exactly a friend he was just... Gabriel.

" Please ," Gabriel scoffed. "Pig n' a Poke and PBB Pancakes? You two never order anything different after heat-season." He pulled over a chair from the quickly filling seats and sat at the end of the booth with them in his colorful tye-dye apron that was decorated in fake blood spatters. Under that he was a jeans and button down shirt kind of owner and he had several cooks so his customers wouldn't be held up for food.

"Comfort food." Dean took his plate of meat products. "After everyone's hormones calm the hell down." Gabriel just smiled and nodded. "Get anyone pregnant?"

"Me? Nah." Gabriel shook his head. "Just some free-loving this year." A sly grin crossed his perpetual smile. "Five very lovely beta ladies volunteered to stay for heat." Sam's knife sliced a little harder through his pancakes than he intended, making a small clatter and gaining the table's attention briefly. Adam had half a flapjack stuffed in his mouth; flapjacks smothered in butter, no syrup. Charlie was still smothering hers in maple, video game put away.

"Betas?" Sam asked, surprised. "I thought you were mated."

"Not for several heats now." Gabriel gave Sam a raised brow. "Falling behind on the times, Sam?"

"Pre-presenting hormones," Dean said with a shrug. "He was into his own girlfriend too."

"Oh yeah, how's Jess?" Gabriel asked, glancing at Sam.

"Um, we broke up," Sam said before he took his first bite of warm peanut butter pancakes and banana jam stack of heaven. It soothed the wound of no longer having Jess; a little bit.

"Oh? Did you realize you could do better?" Gabriel sounded much more upbeat that Sam wanted him to and Sam frowned.

"Um, no, I... felt really lucky to have Jess, thanks," Sam said firmly. Gabriel leaned back in his seat, getting comfortable as he shrugged, waving his hand in mild defense. Sam never understood why Gabriel never took to Jess like everyone else did. Gabriel never attempted to court her; perhaps out of respect to Sam. But Gabriel wasn't really one to respect others out of courtesy. Maybe Jess had just not been the type of omega Gabriel liked.

"They broke up because Sam here presented," Dean said helpfully. Gabriel looked confused, brows coming together thoughtfully.

"Why would that cause you two to break up?" He asked carefully. "Is she a beta-lover? Or is she against conventional heat dynamics?" Sam rolled his eyes and Dean snickered, leaving Gabriel in the dark for a moment.

"I'm an omega, Gabe," Sam finally said. It was odd to say, but there, it was out, he didn't become the alpha everyone expected him to be. A look of surprise was very rare to see on Gabriel's face so Sam took in every detail he could while it was there. His brows shot up, he stared at Sam, and his mouth closed.

" No . You're pulling my leg," Gabriel said and Sam rolled his eyes, waiting for Gabriel to come to terms with it. He knew his own father was still dealing with it. They hadn't even talked, but Sam was worried that John was disappointed in him for not being the alpha in the generation. Gabriel tilted his head, looking between the oldest brothers. "You're serious? You're an omega?"

"Very serious." Sam nodded. "You kinda get a clue that you're not an alpha when your dick pulls back into your body and the vagina takes over." Gabriel just smiled, perhaps taking the news much better than he expected him to.

"That's fantastic," Gabriel finally decided on a word. "You didn't breed your first time, did you?"

"No, god no." Sam shook his head. "Now I know why they recommend not being with anyone the first time. It's... it's a lot." Gabriel nodded.

"Yeah, it is for alphas too." Gabriel nodded, as though still processing the monumental fact of Sam's second sex. "Are you going to go free-loving or do you have someone special in mind for next heat season." Gabriel's eyebrows waggled in the amusing way that always made Sam's mouth want to smile more.

"No... I wasn't exactly expecting this. I was... well, I was convinced I'd be an alpha," Sam said. His fork started fiddling on the place, cutting up his breakfast but far too focused on the conversation to eat it just yet. "And last heat just ended, it's too soon to be thinking of the next one."

"Sam, please. In-season or off-season, everyone thinks about the next heat," Gabriel said knowingly. "I mean, this is the year that you get to experience the wonders of being part of the breeding sexes." Sam shrugged a bit and finally took a bite to buy himself time to think. It wasn't like he hadn't occasionally thought about what it would be like when he presented. It consumed most teenagers lives after all. He didn't really like the thought of free-loving. It didn't feel secure. He didn't want alphas to maul each other like beasts for his agreement to mate with them. Free-loving had a large violence ratio and Sam didn't want some random meat-head alpha to help him with his next heat.

"I'd like to find a mate," Sam decided. "I didn't have anyone in mind though... But... I'm not, you know. I'm not the stereotypical omega. I'm not sure if anyone would want to court me."

"You'd probably scare away all the alphas with just your height." Dean said, sounding annoyed with the bulk of the conversation being directed towards heat-season. "Not to mention- Ow! Damn it. Gabriel..." Dean rubbed the shin Gabriel pretended to accidentally kick.

"Whoops, sorry, Dino." Gabriel smirked and looked back to Sam. "Any alpha would be crazy not to court you." Sam didn't believe Gabriel for a second. "I mean it. Dean doesn't know a damn thing about courting."

"Hey," Dean sounded offend. "I know enough. Just because I'm a beta doesn't mean I'm stupid."

"I never said stupid," Gabriel said pointedly. "You don't know what courting is like unless you participate in it. So shut your cake-hole." Gabriel turned and gave Sam a smile. "Trust me, everything changes when you present." Gabriel gave Sam a quick wink. "Once spring rolls around, the alphas will be clamoring over each other for Sam's attention." Sam wasn't sure how much of that he believed but he couldn't do anything about it at the moment. Spring was still a full three months away and Sam wanted to focus on anything that wasn't related to sex, alphas, or heat.

Gabriel did have to go back to his job after a few more minutes of catching up. They agreed to spend time hanging out in the winter and Gabriel gave both Charlie and Adam a free scoop of ice cream for the beginning of the most mellow time of year.