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If all it took to get embedded further into the pack was the use of his body Theo would have tried it sooner. Scott was at wit's end and needed help shouldering the burden of being Alpha and Theo, willing body and all, would provide.
Scott's kisses were wary and hesitant at first until Theo slid hands under his shirt to feel along his lower back and press alongside the band of his jeans. He was rewarded with a gasp and the length of Scott's body arching into him. Theo fought down his smirk and backed Scott into the closest wall, kissing him breathless, teasing him until he was teetering on the edge of release and stopping. “Not here,” he whispered against Scott's lips. He wanted no one interrupting—especially not Stiles, and honestly, the locker room showers were a terrible place for sex. Convenient for trapping someone, or a quickie. But not for what Theo had planned. No, now that he knew he could use this against Scott, he was going to take full advantage and plant the seeds for future encounters. He would get Scott to care more and ignore any inconsistencies.
Theo fully expected, upon kicking the door to Scott's room open, to be thrown onto the bed as the Alpha had his way with him. Instead, Theo found himself above Scott with the Alpha's body and neck bared in willing submission, much like a lamb to the slaughter. It would be so easy to tear into the exposed neck, fangs savaging the tanned skin before Scott was any the wiser. But. But, it would not get him the power he wanted. Still, Theo could not help lightly sinking his teeth into the pulsing flesh, and grinding into Scott as the alpha growled harshly into Theo's ear.
Dragging his tongue across the tiny lines of blood, Theo places his mouth over each healing mark and sucks. The sound Scott makes something twist and squirm inside Theo, the feeling not unlike a hand gripping his insides tightly. It is unpleasant, fluttering and he needs more. Scott has always made him feel strangely since the moment he returned to Beacon Hills and- “Theo?”. But Scott is not the one with the control, Theo reminds himself. Not here, not now.
He manages to get the both of them naked without too much fuss, and while the feel of Scott's warm hands sliding along his ribs and down to his hips, down lower, is exquisite and sharpens his arousal, Theo has plans. Ones that involve his mouth on Scott's cock as his fingers make use of the lube he had bought on a whim the other day, that he managed to sneak out of his back pocket before his jeans landed over the side of the bed.
“Theo,” Scott hisses as fingers press into him, and Theo licks up the length of his shaft in tandem. It is the most intimate he has ever gotten with anyone, just as he knows Scott has never been with a man before. And yet, Scott drops his head back to moan softly as Theo stretches him. To have Scott at his mercy like this, allowing him, trusting him like this—is a huge rush for Theo. He feels powerful.
He pulls his mouth away from Scott, deeming him stretched enough, and smirks a little at the annoyed huff he receives. He positions Scott's legs to his liking, the alpha letting himself be moved like a marionette with strings, and leans forward until he is teasing Scott with proximity. “Theo. Please.”
The way Scott says his name sends a cold shudder down his spine and through his chest. Taking Scott's bottom lip between his teeth, eyes locked on the alphas, Theo rolls his hips forward. Red flares in Scott's eyes as they flutter closed, groan swallowed by their joined mouths. Theo is no better. The feel of heat and tightness around his cock is inexpressible, short-circuiting his brain for long seconds, too many. “Move.” Alpha bleeds into Scott's voice and the gentle command ignites something in Theo, making him instinctively listen. Theo is lost, adrift in the sea that is Scott. All he can see, scent, and taste is Scott. It is the closest to belonging the chimera has felt in years and he wants to hold onto the feeling forever.
A hand at his back, blunt nails scratching lines across his skin, another hand at the base of his neck to hold him in place and keep their mouths sealed, sharing gasping kisses and knocking teeth on every odd thrust. Theo comes undone, lets Scott tear him apart, and put him back together in the span of minutes until he is dizzy and blinking back spots in his vision. “S-scott.” until his voice is gone and he comes, Scott clutching him close and mumbling in his ear too soft for even enhanced hearing to understand.
They stay entangled together until both their hearts have calmed to a normal range, and Theo kisses Scott one last time before rolling beside him. Theo realizes what they shared could on some level be considered tender. Almost caring. His insides twist again as though he has eaten bad food. The feeling only grows as Scott traces what could only be his pack symbol along Theo's ribs, and plants tiny kisses on his shoulder as they lay together.
For a moment Theo had forgotten himself, forgotten that Scott was a means to an end. Nothing more.
And for a moment, Theo hates himself.