Harry Potter -- Boy-Who-Lived, Chosen One, and . . . well . . . werewolf -- has returned to Hogwarts (at Hermione’s insistence) to finish his education. On top of classes and homework, he’s living in a tent (again) and helping to run the weekly HOWL -- Hogwarts Organisation for the Welfare of Lycanthropes -- meetings. What’s more, there’s something odd about Malfoy . . .

After being tortured by a group of hunters, Derek goes into heat. Stiles helps him through it. Written for the 24-hour porn challenge community, Stop, Drop, and Howl.

Derek comes back to Beacon Hills for a number of reasons. The most important one, though, is the result of a one night stand in Vegas. He's knocked up and Alpha, and Cora won't stop playing Papa Don't Preach whenever she gets to pick the music in the car. This shit just keeps happening to him. Or, in which Derek gets the D, Stiles gets the D, then Derek gets Stiles's D.

It's the hazards of having so many omegas in close proximity for so long. They tend to synch up.

Catboy Killua is a pain in his own ass.

In Which A Young Omega, In Defiance Of Both Stereotype And Politeness, Propositions An Alpha Of His Own Blood Caste, And Is Rewarded For His Daring; Contains Awkward Pre-Heat Negotiations, A Supportive And Extraordinarily Unconventional Clade, Heat Cycle Copulation, An Incidental Human Character With Attendant Barkbeast, The Brief Appearance Of A Tealblood Whose Flouting Of Convention Should Not Be Emulated, No Production Of Eggs Whatsoever, And A Hive Of Bees With No Actual Bearing On The Narrative's Outcome.

"I need to—" you can't, you can't say it with Mituna there. "It's my mutation," you say instead. "There are complications." "Okay, dude, open the door," Latula says. The knob rattles, and you miss whatever Mituna says next. "Yeah, I know, but he's still one of us. We can't just let him suffer, you know?" (Kankri misses a social outing. Some of his friends come to check up on him.)

The problem is that you’re at the mercy of a useless, outmoded, ass-backwards mess of a biological process. The drones are gone. They’re never coming again. But your body sure thinks they are. It was— You wouldn’t say it was fine, but it was at least tolerable for a while. Realistically speaking, there was always a reasonable (ninety-nine percent) chance that you’d be culled the first time you tried to supply the drones with a pail, and you’ve been bracing yourself to deal with this since you pupated, for fuck’s sake. It feels like a kick to the shame gloves when your body betrays you and decides, whoops, no, it’s time to be all about filling pails for the glory of the empire.

In which Ryuji valiantly pretends he's not bi and none of his friends are hot.

Lance discovers he has the hots for Keith. Then he discovers that Keith is, quite literally, hot for Lance.

Shiro's heat hits, and Keith helps him with what he needs

Heat fic. 'Nuff said.

The cellular union of Eddie Brock and Venom is not without consequences. Alternatively, Eddie goes into heat (or some alien equivalent of it). It's Venom's fault. "The need unfurls inside of him—doubled but easier to bear now that it is shared. He understands what must be done, has always known. It is as basic and primitive as breathing."

Gladio gets his kinks indulged by the other three while camping and in heat.

Everyone thinks that the elegant imposing Lan Wangji must be an alpha. Wei Wuxian however will learn the truth once the baby fever hits both of them.

Wei Ying has Lan Zhan, and he has A-Yuan, and with his usual generosity, he thinks of a way to give Jiang Li and Jin Zixuan (who have been trying in vain for children for five years) a child of their own. As long as Lan Zhan is okay with it, of course. (Lan Zhan is not okay with it, but he says yes. Lan Zhan just can't say no to Wei Ying, not even when it leads to holding his heat-drunk husband while another man takes him.)

As a twisted gift for the sworn brotherhood of Nie Mingjue, Lan Xichen and Jin Guangyao, Jin Guangshan slips heat triggering poison into his son’s tea. It has the opposite effect than he hopes, and instead of isolating Jin Guangyao from his sworn brothers, it deepens their bonds, making Jin Guangyao finally decide on whose side his loyalty lays.

While on a romantic camping trip together, Lan Xichen and Nie Mingjue happen upon a desperate omega shivering in the snow. They decide to share him, because they share everything.

"That one," Wei Wuxian says, pointing at a radish at random. "All of them. I don't care." His arm falls back onto his lap, boneless. He's boiling inside his skin and he has no strength. If Wen Ning is here to help him, why isn't he helping him already?

Obi-Wan went over thirty years without a heat. It was hardly unusual or unexpected. Everyone knew omega reproductive systems were finicky. Omegas were incredibly fertile while in heat. Nature had, perhaps, compensated for the situation by ensuring they only went into heat when...conditions were correct. OR, the Dark Side AU where the Empire is already in power, the Jedi are long gone, and Obi-Wan Kenobi ends up leading an army to wipe out the Emperor's enemies. Things get more complicated when he goes into heat.

Very occasionally, the captain of a hockey team goes into heat and needs to be lovingly gangbanged by his team to knock him up with as many babies as possible. This year it's Sid's turn.

Geno was in pre-heat when he showed up at the rink: Sid could smell it on him. Geno swanned into the locker room with his head held high, kind of glowing with self-satisfaction, and smelling ripe with it, right on the edge of tipping over.

The inside of the car is hot. Someone should crack a window. Instead, Zhenya curls closer to Sid’s side. “Did you hear me?” “Hm?” Zhenya rubs his cheek against Sid’s hair. It’s damp and curling, almost soft. Sid huffs, sending fresh eddies of his scent whirling. “I asked why your heat suppressants stopped working.”

Marc was fine with being an omega, and then he went and imprinted on Kris Letang.

Tipping back in the chair, Sid craned his neck to look up at him. He inhaled through his nose and caught the warm-metal scent of Geno’s post-heat bleed. “I can help you with that, too,” he murmured.

You are not your biology. Tyler’s mother had told him that so many times growing up. When he told her he wanted to play hockey but was afraid to go up against so many alphas. You are not your biology. When an alpha triggered his heat during a scrum and Tyler had to be carried off the ice, fever already burning up his bones. You are not your biology. Tyler wishes he could believe her.

“I deserve to suffer.” “Sorry to hear American alphas aren’t good enough for your fussy little Russian asshole,” Seryozha says. “Now, stop pouting. Just because you think you need to suffer, doesn’t mean I’m going to suffer through all your drama with you. God knows you’re already insufferable enough on normal days.” Zhenya spends a few more seconds definitely Not pouting, no matter what the sullen purse of his lips might suggest.

Alphas aren't allowed to exhaust themselves by fucking an omega in heat during the playoffs. There are sex machines for that.

Evgeni Malkin goes into rut on the ice in North Dakota.

Dylan squeezes Jack’s arm. Jack opens his eyes again, not even realising he’d let them slip shut. “We’re saying you should call us when your heat hits.”

It’s been decades since a Switch was of enough importance and interest to society to be documented so no one cares much anymore. But also, no one really knows how to handle it. All the doctors he’s ever been to just caution him to be careful as he grows and learns.

As a prince and an alpha, Geno needs to get bonded before he turns thirty. With his birthday fast approaching, he returns to Russia to find a suitable omega. The only problem is that Sid has secretly been in love with Geno for years.

If it's a choice between bonding and hockey, Zhenya is going to choose hockey every time.

Jonny’s never spent a heat with another guy, alpha or no. Never had an honest-to-god-dick-attached-knot inside him. Never been with someone he used to daydream about lifting his ass up for, even on suppressants.

Jordan’s always been kind of jealous of people with dynamics, like Taylor.

It hits him like a goddamn bus right after his and Crosby’s power play goal puts Canada up 5-0. Not the heat itself—that’s little more than a prickle under his skin—but the knowledge that one’s coming. Here. In Prague.

Travis goes into heat while in the bubble. The only problem is that Patty is 2000 kilometers away.

“What happened?” Sid croaks to the nurse. “Can I play hockey?” She pauses where she’s fixing the heart rate monitor on his finger. “The doctor will be in to see you in the morning,” she tells him. “It’s good you’re awake, sweetheart. Your alpha was very worried about you.”

Geno’s ready for his rut. Sid isn’t.

“Shut the door,” says Draisaitl. “’Course you’re bossy like this,” Matthew mutters. But he shuts the door and, after a minute of hesitation, flicks the latch shut too. “McDavid gave me the talk, you know why I’m here, so if you want me to go—”

Edmonton brought Milan in for a bunch of reasons, but one of them was this: when Connor eventually went into heat, Milan would, too.

Tom's not sure he's ever felt quite so vulnerable.

Leon hates Matthew Tkachuk. Doesn't he? So then why isn't he turning him away, despite his heat?

"You can't skip a heat," Dicky says. "If you could I'd schedule mine for bye week and the offseason every time." "It's like, some pills to delay it, for game day, and then to make it happen faster, after," Miro tries to explain. "I took those once," Tyler calls from inside the trainer's room, where he's getting an ice pack strapped to his hip, "during the 2013 playoffs. They're a fucking trip, but they do the trick. Better make sure you've got an alpha who can handle it."

Going into heat during the Stanley Cup Finals, Geno only needed a way to get through one game, so he turned to Sid. If Sid could get him off between periods, Geno was certain he could resist his greater need until they were done.

“Quick! How do I help an omega that’s nearing critical heat?” Jason asked. “What?’ Roy asked. “The hell ya need to know that for?” “Because I got one with me right now and-- Ah!! Hands! Hands!” Or the one where Jason goes to drop off groceries at the Nest only to get dragged into helping Tim through a critical heat while Roy gives advice from the sidelines.

Tim flees to Titans Tower when his presentation heat hits. Jason doesn't know how this became his problem.

Jack Drake catches his son sneaking in through the window, and jumps to the wrong conclusion.

“...What are your thoughts on interspecies copulation?” he calls out.

The best thing about the SEP, if you had to ask Gabriel, was the fact that it not only boosted his aptitude for combat and made him an even better soldier than he was before, but it also brought Jack Morrison into his life. While he wouldn't say he had a fetish for catfolk specifically, the fact that the SEP also worked wonders on enhancing the cat-like qualities of their catfolk soldiers wasn't exactly something that helped Gabriel's fascination with his roommate’s (who later became his lover-then-husband) nature either.