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Derek was standing in front of the mirror, half-done with his tie, then Spencer walked into the bedroom already in his work clothes. Derek smirked, looking at Spencer’s put together clothes and relaxed facial expression.
Spencer paused when he saw his boyfriend’s face.
“You’re smiling like that for a reason,” Spencer said, suspicion creeping into his voice.
Derek turned around, closing the space between them. “You remember that bet you lost, Pretty Boy?”
Spencer groaned immediately. “Derek, if this is about the stupid video game—”
“Oh, it’s definitely about the stupid video game,” Derek said, grinning now. He caught Spencer’s hand and kissed the inside of his wrist. “You said I could ask for anything I wanted.”
The way Spencer’s breath hitched told him he remembered exactly what that had meant. Derek leaned in close enough that his voice brushed against Spencer’s ear when he said, “I want to try something today.”
Spencer’s brows drew together, half-nervous, half-intrigued. “Try what?”
Derek just smiled and raised his eyebrows towards something on the table. Spencer’s eyes widened. It was a vibrator, with a remote control next to it.
Derek came up behind him, wrapping his arms around Spencer’s waist.
“You trust me?” He whispered low into his ear.
There was a beat. Spencer’s hesitation, the one that always came before he decided to trust Derek anyway. “Always,” he whispered.
“Bend over then, pretty boy.” Derek said with a smack on Spencer’s ass.
Spencer undid his slacks and bent over, resting his chest on the bed. Derek watched appreciatively, feeling his dick twitch in his pants at the sight in front of him.
“Are you still loose and sloppy for me from last night?”
“No…” Spencer‘s response was muffled.
“Let’s see…” Derek lubed up a finger and shoved it inside Spencer’s hole. He yelped, and then yelped again when Derek’s other hand gripped his asscheek hard. He shouted out when Derek’s finger started to move, then it broke off into a moan.
“You fucking slut.” Derek spat onto Spencer’s open hole. “You’d take my dick right here right now wouldn’t you? Even if it meant we’d be late for work? The great Doctor Spencer Reid?”
“Mmmm” Spencer moaned into the bed, nodding.
“Mindless plaything.” Derek’s harsh words still sounded so kind, softened by love and adoration. He withdrew his hand and gently hushed Spencer when he cried out in protest. Slicking up the toy, he worked it into Spencer, until just the flared base stuck out.
Spencer was whining the most delicious noises, his voice perfectly pathetic and helpless. Derek wiggled the toy around inside him a little, just to hear that broken moan.
“Alright Pretty Boy, good job. Up.”
Spencer stood on wobbly legs, immediately turning round and doing up Derek’s tie, even though his own pants were pooled at his ankles.
Derek subtly turned on the vibrator in low setting once he was done. Spencer moaned at the sensation and clenched his fist, he collapsed against Derek’s chest who then…Turned it off.
“Derek…Not fair.” Spencer panted.
“You got a long day ahead of you baby boy. Let’s go! Or we’ll be late.”
The drive to Quantico felt longer than usual. Spencer was fidgeting in the passenger seat, fingers gripping his go-bag, eyes darting to Derek like he was waiting for the other shoe to drop. Derek had his hand resting casually on the gearshift, thumb brushing Spencer’s knee every few minutes. It wasn’t much, but it was enough to make Spencer squirm a little.
“Relax,” Derek murmured, keeping his eyes on the road. “You’re doing fine.”
“I’m not sure what you expect me to be doing,” Spencer muttered, his voice already tight.
Derek smirked. “Exactly that.”
He didn’t say anything else the rest of the drive. The silence between them thickened. When they finally pulled into the Bureau lot, Spencer looked like he’d forgotten how to breathe evenly.
Derek admired him when they got to a red light. Spencer’s pretty heaving breaths, his lips parted open, his chest rising and falling, his legs twitching.
Perfect.
“Good boy,” Derek patted Spencer's clothed cock like he was patting a pet for a job well done.
Spencer gasped and shook at the contact, his hips bucking up into Derek’s petting.
Derek took his hand away, ignoring Spencer’s quiet sob.
“Both hands on the wheel, that’s what you always say, right?”
“Derek…” Spencer said warning. “I can’t—I can’t keep going especially in the office please, please let me cum.”
Derek kept staring at the road, driving leisurely.
“My baby wants to cum before the office? Is that it?” He teased.
Spencer whined.
“Spencer, you know how it works. Earn it, c’mon baby.”
“N-now?”
“Now. Or you can just keep it in, I don’t mind” Derek said it as if he didn’t care, but he could feel his cock straining against his jeans. Even the sight of Spencer’s flush rising up his neck to his cheek is enough to get him hard as a rock these days.
One hand still on the wheel, he reached next to his seat and grabbed the remote, turning the toy onto its highest setting.
Spencer practically screamed in response, his moan bursting out of him with such force. He threw his back his head, aching off of the seat.
“It’s your decision though, of course. We have fifteen minutes until we are at the office” Derek laughed.
He heard movement, and the next thing he knew, Spencer’s shaky pale fingers were undoing his jeans and getting his dick out of his underwear.
“What if someone sees?”
“Breakfast, for a slut like you.” Derek whispered as Spencer’s head came down.
He froze in front of Derek’s cock, the soft breaths onto his skin driving him crazy. One hand on the wheel, Derek put the other on the back of Spencer’s head.
He led him down, twisting his fingers in his boyfriend’s curl, pulling hard enough for it to hurt.
Spencer kitten licked the tip, moaning and wincing at the pain.
“Ready, baby?”
Spencer nodded.
Derek pushed his head down, harshly sticking his considerable length down Spencer’s tight throat.
“Fuck.” He moaned.
Spencer gagged, and the convulsing around him felt amazing. Derek started to pull Spencer up and down his cock, as if he was nothing at all. Spencer was desperately licking as he went up and down at a harsh, rapid pace.
The wet, dirty sounds coming from down below almost drowned out Derek’s grunts and gasps.
Fuck, Spencer’s a goddamn miracle.
He continued to use his boyfriends mouth, abruptly stopping at a red light. A car pulled up beside them, Derek couldn’t bring it in himself to care as he thrusted his hips up into Spencer’s mouth at the same time he dragged his head down.
Derek yelped in a way he’d deny to anyone who asked and came down Spencer’s throat.
He just hoped the tinted windows were tinted enough.
Because of the angle, his cum dripped out of Spencer’s mouth and back onto his cock, even though his good boy tried to swallow as much as he could.
“Clean me.” He said breathlessly, sighing as Spencer started to lick up the cum from his soft cock.
It was only when Derek was heavy breathing to try concentrate back on the road, did he hear the vibrating and Spencer’s soft cries.
“Almost forgot.”
He gently pushed Spencer back into a sitting position in his seat.
The light went green.
Without even looking at him, Derek drove with one hand and used the other to roughly palm at Spencer’s hard-on above his slacks.
Spencer whined those high pitched noises again. They were these girlish yelps that were so ridiculous, Derek thought he must be the luckiest man alive.
Spencer moaned out his name, and came in his pants.
“Off, off, off please.” He stuttered weakly.
Derek turned off the remote
“My perfect Pretty Boy, you were amazing.”
“Yeah?”
“I fucking love you.”
“I love you too, so much. Even though I’m all dirty now.” Spencer said the last part with disdain.
“It’s fine, change into your go-bag trousers, I’ll pull over just outside the parking lot.”
“And then you’ll take it out.” Spencer said with relief.
“Nuh-uh honey, but I won’t turn it on.” “Want you to be thinking of being filled the entire work day, nice and open for me.”
“Derek!”
Spencer’s voice was so shocked and distressed, Derek felt worry bloom for the first time all day. He knew Spencer well enough to know what he liked, but had he pushed it too far?
“You don’t want to? You know your safeword, right?”
Spencer cleared his throat. “I don’t want to use it I—This is just going to be a lot.” He smirked.
“There’s my baby.” Derek laughed, pulling into an empty spot in the very corner.
Inside the BAU, JJ was walking down the stairs with a new case file in her hands. Derek sat at his desk, pretending to focus, but half of his attention stayed locked on Spencer across the room. He could tell by the way Spencer’s hand hovered over his files, the way his leg bounced, that the release from the morning hadn’t done enough.
“Reid, you good?” JJ asked, glancing over.
Spencer looked up, too quickly. “Yeah, yeah, fine,” he said, voice just slightly higher than normal.
JJ narrowed her eyes, unconvinced, but let it go.
Derek bit back a grin, keeping his tone smooth. “He’s fine, JJ. Probably just hasn’t had enough coffee.”
Emily arched a brow. “You? Saying he needs more coffee? That’s new.”
The team laughed lightly, the sound filling the bullpen. Derek could see the faint flush creeping up Spencer’s neck as he ducked his head into the nearest file. Derek leaned back in his chair, watching him, pride curling low in his chest. The kid was brilliant, composed, but right now, every small twitch and fidget gave him away. Only Derek could get him to agree to something like this, the only one who could get him to look this beautiful.
He was so pretty like this—trying so hard to act normal.
The day passed by quick, and Spencer could decidedly not wait until they were home. The minute it was 5PM, he loitered until everyone was gone, he went up to Derek’s office. And he followed.
The second the door clicked shut, Spencer exhaled like he’d been holding his breath for hours.
“You,” he said, pointing at Derek, “are evil.”
Derek laughed, stepping in close. “Maybe. But you like me anyway.”
Spencer shook his head, but his voice softened. “You drive me insane.”
Derek brushed his knuckles along Spencer’s jaw. “That right?”
“Completely.”
Derek leaned down, his voice dropping low. “Good.”
He kissed him then, slow and deep. Licking into Spencer’s mouth, swallowing all of his cute little moans.
Derek pressed a hand to the back of his neck, thumb tracing circles there. “You did so good today, Pretty Boy. I got you, I’m so proud of you.”
Spencer let out a small laugh, soft and sleepy. “Next time,” he murmured, “I’m winning the bet.”
Derek grinned against his hair. “Not a chance.”
Spencer spun himself around and pressed himself against Derek’s desk, hastily moving files out the way so he could bend down over it. A strange mirror to this morning's activities.
Except this time, Derek smirked and undid his belt, too.
Maybe they should make more bets, Derek thought as Spencer looked back at him, eyes dark and filled with lust.