Here is the really weird knot-smut you've all been waiting for! This chapter is, again, mostly just fluff and smut.


Dean wasn't subtle in sneaking back to the Leopard's cage that day. He walked through the front doors, signed into work, checked his schedule to make sure nothing had been added to his tasks, and moved as fast as he could back to the enclosure.

He shut the door behind him, and gave a groan as Castiel's scent washed over his body. He could feel his spots coming out, reacting to the powerful smell. If he thought it had been bad yesterday, it had nothing on today.

"Alpha," Cas groaned. Dean immediately stalked forward, already shedding his jacket and boots before he got to the door. His eyes turned to the side to get a glance at Castiel before he continued, and he stopped in his tracks.

Castiel was stroking himself, stretched across the large catbed in the corner. He gave little pants and moans, ears pinned back as his hand worked furiously at his erection. Dean gave out a small snarl, not even realizing he was going to until it had already been ripped out of him.

"Castiel." Dean said. Castiel's hand stopped moving and he turned to look at Dean with wide, desperate eyes.

"You need to get in here and fuck me immediately." Cas growled. He stood up off the bed and began taking long strides to the door. Dean was already there and opening it by the time he reached it.

Dean found his shoulders grasped tightly as Castiel pulled him around, shoving his back against the wall and laying claim to his mouth. Cas's hands were quick and skilled as they removed his shirt, pulling at the buttons and sliding it smoothly down his arms.

He tasted like honey and wild grass and sunshine and fuck, everything Dean had come to love over the years. He tasted like home and the open road and a hint of nostalgia, and Dean couldn't get enough. He loved Castiel's taste.

"You have no idea how long I've wanted to do that." Castiel growled as he pulled away. His lips immediately began to kiss along Dean's jaw, and he growled out words between small sucks. "Been thinking about your knot all day, Alpha."

"M-My name is Dean." Dean said, blushing under the extreme attention. Castiel had it even wore than he did.

"Dean," Cas growled, giving a much harder suck to his neck. Dean gave a small moan as Castiel's hands began working at the waistband of his pants. The button and zipper came undone quickly, and Dean suddenly found his pants around his ankles.

"Cas, wait," He said, mentally stabbing himself for interrupting this. Castiel pulled away a little bit, and Dean's body wailed in protest. "This weird knot thing was on my... Well, it was on the goods last night. Do you... Is that the "knot" you were talking about? Because if not, I brought condoms we could use until we get it checked out." Dean said, blushing. God, this was embarrassing.

Castiel looked at him quizzically. "You honestly couldn't tell?"

"N-No." Dean said, suddenly feeling stupid. Castiel immediately dropped to his knees, and Dean was almost dizzy from the fast-paced change.

"Alright. Well, then, we'll just have to see." Castiel purred. His hands traced Dean's waist band, his thumb barely grazing the spots on Dean's hips as he began to pull downwards. Dean helped by stepping out of his pants and trying to keep his hips from bucking.

His dick throbbed when Cas touched it, and he gave a small whine.

Castiel slowly directed it up, ducking down to see underneath.

"I'm going to press the spot where your knot should be. If that's not where it was last night, we have a problem." He said, looking up. Dean's entire body felt hot and he wasn't sure he could open his mouth without making a terribly degrading sound, so he nodded instead.

Castiel's thumb slowly pressed down on the sensitive area, and Dean gave a long moan. "Yes, yes, god yes,"

"This is the place?" Castiel questioned, still massaging it. Dean made the same noise again, and sagged in relief as Castiel's hand left his member. "That's your knot. Now, if you're done finding excuses to delay it, come on and fuck me."

Dean gave a small chuckle as Castiel turned and walked away, climbing back onto the cat bed. He lay down on his chest with his arms tucked firmly under his chin, and his knees pulled up to present his entrance. Dean stared for a few seconds before he quickly stepped out of his underwear and reached down to take off his socks.

The condoms lay useless on the ground. "So, is there any particular way you want this, or...?"

Castiel gave a soft growl. "Now would be best."

Dean gave a small, nervous chuckle. Castiel was... God, he was beautiful. His spots kept shifting and moving along with his muscles, and his back was arched perfectly, like he was stalking prey. His ears were pinned back and his skin was covered in a light sheen of sweat, making him look absolutely glorious.

This felt wrong. Dean wasn't going to jump in and claim his ass the second he got there; no, he would treat Castiel just as well as he would any of his partners. That being; Dean Winchester made love before he fucked, even if the sex itself was loveless. He was going to make sure that Cas was good and ready before he decided to jump in and mindlessly rut into him.

"Turn over." Dean commanded.

"What?" Castiel growled, wiggling his hips impatiently.

"Turn. Over." Dean said. Castiel's shoulders shifted, and he glared at Dean. "Listen, if you want me to fuck you, I'm gonna make sure everything's ready first. Turn over."

"Omegas self-lubricate. There's nothing to get "ready"." Castiel bitched, but still turned over. His cock was swollen and hard, pushing up against his stomach. Dean could hazard a guess that it had received a great deal of attention over the last couple of days.

He lay down, coming to rest with his hands on either side of Castiel's ribs, and his knees against his knees. Castiel's hips gave a small buck, searching for friction in between their bodies.

Dean gave a small grind in return, their dry members rubbing together. Cas gave a whimper, and Dean's hands slowly found their way to holding his wrists down.

"Do you like this?" Dean questioned, leaning down to kiss along Cas's jaw. Cas's hips bucked again in answer, and Dean gave a small chuckle. He moved down to Cas's shoulder spots, knowing that those were sensitive as fuck and more than ready to pay them plenty of attention.

Castiel gave a long, rich moan when Dean latched on, sucking and nibbling lightly. He gave a larger suck, running his tongue over the slightly-textured skin. Cas gave a small growl, hands fighting against Dean's in an attempt to run through Dean's hair.

"Release me." Castiel said, flatly. His chest was bumping against Dean's as he breathed up and down. Dean let his hands go, palms splaying flat on the cat bed to support his weight. Castiel's hands twitched, but stayed where they were. "I... Actually, do that again."

Dean's hands moved again, and he laughed a little. Castiel's hips gave small snaps and rubbed his member over Dean's hip bone, and Dean gave a small bite in response. Cas gasped, hips moving faster.

"Claim me." He begged. Dean didn't know what it meant at first, when suddenly, knowledge was shoved at him. He didn't have time to question it; his teeth were sinking into Cas's shoulder, drawing blood as he sucked at the mark.

"Fuck," Castiel shouted, hips working faster as he suddenly came. Dean felt the warm splash across his stomach, and he released to look down at it.

"Whoa." He said, releasing Cas's wrists to slowly sink down his body. He gave small touches and nips to his skin along the way, licking up all the cum that had landed on Castiel' By the time he got back down to his dick, Castiel was already hard again.

We have a very low refractory period , popped into his head. It was Castiel's voice, but Castiel wasn't speaking. Dean looked up at him in shock for a second, eyes wide as he took in what had happened.

"Were you... Did you...?"

"I'll explain later." Castiel said, out loud. "It was very weak before now, but your claiming mark just-"

Dean shut him up by taking his dick into his mouth, slowly beginning to bob his head as Castiel's fingers turned into fists on the sheets.

"Fuck, Dean, please," He breathed, giving a small noise of approval at Dean's head bobbing. Dean's own member was throbbing and hot with neglect, but he ignored that in favor of grazing his teeth barely along Cas's shaft.

Castiel's entire body shuddered, and Dean felt a drop of precum land on his tongue. His entire body seemed to flare up with arousal at the taste.

Dean had never been all that fond of the taste of cum before, but this tasted like Castiel's scent on concentrate . It was the most beautiful thing he'd ever felt, and he gave another eager suck to make sure he got it all.

Put something inside me , Castiel sent. Dean rolled his eyes but pulled off of his dick, moving to press kisses into his thighs as his right hand moved to press between Castiel's cheeks. It was already wet with something, and Dean sent mild confusion to Castiel. Castiel responded with general information, no words, and Dean suddenly knew what he'd meant by "self-lubricate".

This, of course, meant that Dean immediately sunk the first digit in all the way. Castiel's hips bucked hard against the finger, and Dean slowly began to move it in and out, teasing Cas.

He had several hickeys on his thighs before Dean allowed the second finger to join the first one. Castiel was a moaning, panting, mess, and he couldn't help but feel like Castiel was really enjoying this. He added a third finger just to be sure, fucking them in and out of his lover's squirming body as fast as he could.

"Dean, DEAN, Dean," Castiel chanted, arching his back as Dean hit his prostate over and over again. Dean's fingers pulled out, and he sat up.

"How do you want this, Cas?" He questioned, voice coming out in a lust-induced growl. "Do you want me like this? Do you want to turn over and present?" Dean questioned. Castiel's pupils widened in interest as he nodded his head, and he slowly turned over, knees spreading and ass raising as he left himself wide-open.

Dean moaned at the sight of his now-leaking entrance. Castiel gave a small whine, pushing back. Dean watched as the head of his cock brushed up against his hole, and he had to hold back a full-body shudder at the slick sensation.

"Please, Dean, now," Castiel begged. Dean's hands gripped Castiel's hips as he began to slowly sink into the other man, inch by inch gliding slowly by until his balls were flush with Cas's cheeks.

"Fuck, Cas," He groaned. Castiel gave a small shudder, arching his back more and rocking his hips back and forth to urge Dean to move. He was tight and wet and hot around Dean, and Dean wasn't sure how long he was gonna make it before he blew.

Once he had a moment to get himself together, he pulled out and thrust back in again, rough like he knew Cas wanted it. Castiel let out a keening sound, pushing back against Dean to the best of his ability as he let the pleasure wash over him. Dean smirked and began to move just a little bit faster, in and out and in and out, focusing on the feeling of Cas's walls clamping around him.

The pressure built in his knot again, and Dean let out a long moan. He stopped moving, but Castiel's hips wouldn't stop rocking. Dean squeezed Cas's hips and forced him to stop, regaining control of himself.

"Please, Dean," Castiel begged. Dean gave a soft growl in return, and he felt his skin shifting as his spots covered more of his body.

"Baby, just a second," He said, shaking his head. He began to softly thrust again, getting his rhythm back as soon as he was able. He switched from fast to thrusting as hard as his hips would allow, snapping into Castiel as Castiel let out loud sounds of pleasure and want.

"Fuck, yes, alpha, just like that," He babbled. Dean could tell he was close by the way he flushed all over his body, skin blushing a pretty pink and ass occasionally twitching around Dean's dick. Dean leaned forward to press his chest against Castiel's back, one of his hands reaching around to grab his dick and pump in time with his thrusts.

He eventually slowed down a little more, feeling the heat begin to start in his stomach and knowing that he couldn't fight it forever. Dean gave small kisses across Castiel's shoulders and his hand worked faster, open adoration for Castiel beginning to seep into their connection. Castiel gasped as he felt it, and he knelt down more, burying his face in his hands.

No, Dean growled through their connection, You're beautiful.

Castiel's head rose again, and he twisted the top of his body so that Dean could give him a kiss, teeth and tongue clashing in a way that was absolutely filthy as Dean continued to nail into him as fast as he possibly could. Castiel gave a shudder and Dean's hand stopped on his cock, thumb coming up to rub roughly at the slick cockhead.

Castiel gave a cry as he came, body jerking and spasming. Dean gave a long groan, finally letting go. His knot swelled as he filled Castiel with his cum, connecting them.

Castiel rubbed his head against Dean's chin, getting his attention before he statred to lay down on his side. Dean's body followed suit, his arms moving to protectively wrap around Castiel as they would wait for his knot to go down.

"That was amazing." Dean purred, giving a small lick to Castiel's ear. Castiel shuddered, and he nodded his head.

"D-Don't move," He cautioned, "Your knot is pressing right up against my prostate, if you do, I may end up cumming again." He said. As he spoke, his chamber twitched around Dean's body, and he felt a second round of cum shoot out of him. Cas gave a groan and shifted back, hard, as his dick stirred back to life.

"And that would be a bad thing?" Dean asked, still recovering. He wondered how many of these weird, knot-orgasms he was going to have before they would be able to separate. He found himself hoping that it was a lot.

"If you want me to be cognizant, yes." Castiel grumbled. He twitched around Dean a second time, and Dean felt another hot burst of cum gush out. His hips snapped forward of their own accord, and suddenly, Castiel was moaning and cumming all over himself again.

"Sorry." Dean said, trying to still his still-twitching hips. "You seem pretty sensitive."

"A knot does that to an omega. You can... You can do that if you'd like, but just know that whatever I say I can't control when I'm like this."

"What do you mean?" Dean questioned, experimentally shifting his hips. Castiel's chest immediately began to quake with his hard purr, and Dean smirked as he continued to give small, barely-there thrusts.

There was a small falter in Castiel's control, and pleasure and emotion flowed openly through their connection. Dean felt adoration and trust and something almost close to love come through, and his omega's approval caused yet another bit of cum to shoot out. His hips briefly snapped furiously against Cas's, and Cas growled as a his third orgasm was ripped from him.

"I mean that I can't keep my emotions in check. And you'll feel that. I-I don't know- ah!" Castiel gave a small noise as Dean shifted his hips again, mischievously. "I don't know how to properly control a mind link. Yours, of course, is wide open right now. You should be embarrassed by how fond of me you already are."

Dean groaned as another orgasm came. Okay, if Cas had any control of his muscles, he was definitely doing that on purpose.

"You like me just as much." Dean teased. He snapped his hips and Cas came again, as if proving his point.

"I barely know you." Castiel growled. "Just because we're true mates doesn't mean that we're going to automatically fall deeply in love. My parents couldn't stand each other."

"Well, we'll just have to hope that that doesn't happen." Dean teased. Finally, he felt is last orgasm shudder through him, and his hips pulled back out of Castiel. "Oh, god, that's amazing."

"You'd better get ready for it again, soon enough." Castiel informed him, tossing a look over his shoulder. "I expect to do that at least twice more before I let you go."

"You seriously think I'm gonna be up for it three times in one day?" Dean questioned, raising his eyebrows. As if specifically to defy him, his dick began to twitch to life again that moment. He stared down at it in wonder. "What the fuck?"

"I'm in heat, you're in rut, we're going to be using each other an awful lot for the next week or so." Castiel purred. Dean gave a small groan.

"I'm gonna be so behind on work. I'm gonna have to stay over to get everything done every night." He complained. Castiel rolled his eyes, stretching his body out. Dean glanced down to see him hardening again, and it set his mouth to watering."

"The craze will only last today and tomorrow." Castiel said. "After that, I can explain to you more about what's coming. I don't want to give you any new information towards the beginning, because I'd like to hope you won't be too overwhelmed to fuck me again in the new future."

In retaliation, Dean's hips lined themselves up again. "How about now?" He questioned, slowly pushing forward and sinking into Castiel.