You're Mine

Climax

[AN: This chapter contain smut. You have been warned. From now, I'll put cw: smut and I will also name trigger warnings (tw) when necessary.]

Cas stepped back from Dean, standing as if they were about to fence-- Castiel was making sure that if the Alpha were to make a move, that he would be ready to stop; if he could resist, that is.

"Dean, don't do this..." The Omega cooed, trying to reason with the dominant werewolf before him. Dean just humphed and slouched a tad, trying to fight the feeling. "I know this is much harder for you, Dean, but I'm not what you want."

Dean mustered up a deep groan. "You don't know what I want, Cas!" He protested stubbornly-- he was always so fucking stubborn. "Ever since that first day in the office. When I matched your scent to your face, it all made sense. You are my Omega." Cas grunted at that; being called Dean's.

At the release of the truth, Cas' heart was pounding and the fabric of his expensive work slacks tightened around his crotch; it was finally over. They didn't have to fight the heat. They would both get their release. Before Cas could even process Dean's sayings, the- his Alpha's lips were against his own, and he was indubitably kissing back.

It was Dean sucking on his lip that really got him going. As soon as he felt the nip at the plush, slick flesh from Dean, he moaned. Cas could no longer help it-- he was going to be fucked by Dean. "D-Dean..." The Omega panted and struggled to find other words. "In private- please?" He pleaded, but now Dean was sucking on his neck.

Little to Cas' knowledge, Dean could smell his slick; the natural lubricant produced by all Omegas; it was usually the deciding factor when looking for a mate. The Alpha pawed at his prey, pulling him by the waistband into the nearest supply closet, wasting no time in hoisting him up. Instinctively, Cas wrapped his strong legs around Dean and grunted as he was kissed passionately.

Everything between them was hot. The touching. The kissing. The passion in both their actions. Cas couldn't help but make it hotter by literally wrenching Dean's shirt from his body, each button flying in a different direction. Dean returned the service by ripping Cas' pants and briefs at the ass, slowly sliding a finger into the submissive wolf's ass.

Cas keened down on the digit and took in a ragged gasp of air. After he was stretched-- which didn't take long-- Dean added a second finger, thrusting the two digits in and out of Cas, stretching, scissoring, and stroking him open. The Omega, of course was whining, moaning and gasping out for more; he already needed more.

Dean's Alpha senses kicked in, making him growl as Castiel begged, telling him to hush, letting him know that Dean was in charge. He gnawed at Cas' sweaty, blood-shot neck, pulling his fingers out of his Omega, quick to replace them with his hot, rock-solid cock.

Dean was finally whole, finally buried inside of something that belonged to him; Cas was his mate. He knew, because all of the times he'd had sex before this- every time he'd fucked, no longer mattered; and none of it compared to this. Being inside of Cas' slick ass, having in incase his cock, was the most bliss that the Alpha had ever been in. This was euphoria. He was floating.

All of this overwhelmed Dean, clouding his thoughts and making him lose focus, until he felt Cas lower himself onto the Alpha's cock, fucking himself on the entire thing. Dean grunted lowly, pawing and clawing at Cas' back. "Cas, let me..." He growled out and in all of his dominant heat, he grabbed his Omega's hips, thrusting up with a snap.

The sound of hips slapping ass filled the closet, and Dean was sure that anybody in the outside world could definitely hear them. He reached down, gripping Cas' cock at the base, "hold it." The command had the Omega floating, his skin tingling wherever Dean touched.

They stayed like this until Dean came in Cas' ass, and Cas shot his load on both of the werewolves.

---

The next day was awkward, and Dean wanted no part of it. Cas wasn't at work, Dean was alone at the office, along with all of the assholes staring at him. They knew. Everybody knew.

Now, they'd have to be a "thing". Dean was in a romantic relationship with a man. He had sex with a man.

And he loved it.