Notes

Adrian Monk is exposed to some kind of aphrodisiac that makes him overly sensitive. Leland mercilessly takes advantage.

It was meant to be entirely safe, but when Monk opened the safe, instead of finding a gun, a pink powder spilled out. He coughed and jumped back, but the damage was done. He could already feel his head becoming fuzzy, and the sensation of his clothes against his skin suddenly amplified tenfold. He moaned and fell to his knees, his head pounding from all the conflicting and overpowering sensations.
"Monk!" Leland yelled, bending down and gently touching his shoulder. It sent a pleasurable shock through his entire body, and Monk yelped. "The hell happened?"
For whatever reason, they were the only two at the crime scene at the moment. Monk couldn't exactly recall why, what with the fact that his nipples were already hardening from the friction from his shirt.
Monk had always been a very sensitive person, mentally and physically. He and Trudy had had sex once or twice, but he had never really been into it, and Trudy, the amazing person she was, had just accepted and let it go.
The sensation itself was fine - great, even. But it felt so filthy and wrong that Monk was never able to get into it.
Now, however, it was like every sensation, however slight, was arousing him. He looked up at Stottlemeyer desperately and let out a helpless moan.
"There- there was something in the safe. God, Captain, it- it feels so good!"
Monk and Leland froze simultaneously. The older man gave Monk an appraising look.
"It feels... good?" he repeated.
Monk writhed on the floor and, in a desperate attempt to stop the sensations, quickly divested himself of his pants, jacket, and button up. He lay almost naked on the bare floor, but even the press of the ground was enough to harden his cock.
Leland's eyes, previously filled with concern, now clouded with lust at the sight of Monk's muscled, toned body. He had no idea why the man, generally loathing physical activity and possessing no inclination towards muscle-building, was so incredibly muscular, but regardless the sight made his cock rock-hard.
"You know, Monk, with all the trouble you've caused me, don't I deserve some compensation?" he asked.
Monk barely registered the question and didn't answer. Leland, of course, hadn't exactly been expecting or wanting one.
Monk felt a wet sensation on his right pectoral and actually screamed. He arched away from the sensation, but Leland easily stopped the man with one hand. He had begun pressing his mouth against the firm muscle and was now swirling his tongue around Monk's nipple. The feeling was simply too
much. He began sobbing, tears streaming down his face from some mere nipple play.
"C-Captain, stop!" he cried out, but his traitorous cock rose instantly and began leaking pre-come,
staining his boxers. "Wh-what are you doing?" He thought of all the bacteria and microbes that resided in Stottlemeyer's mouth, many of which were being transferred to his bare skin, but it simply felt too good.
"Stop moving so much," Leland muttered as if Monk was acting immaturely to his rape. "God, I never thought the great Adrian Monk would be such a noisy cockslut."
Monk let out another squeal, his cock springing from his boxers and wetly slapping his extremely well-defined abs. "Ngh- sto- please! Capta- fuck!" He made another attempt to scramble away, one Leland easily halted. He narrowed his eyes slightly - why the hell did Monk have to be so resistant about this? Leland was just having some fun, and that was his right, wasn't it? Monk didn't deserve to resist - but the captain had to admit, it was fun forcing himself onto the muscled younger man.
Monk practically roared, his back arching dramatically as he came. His cock shot come all over his firmly muscled body, staining his face and upper body with come. His body spasmed violently, and his cock twitched afterward as if still feeling the aftershocks. Monk moaned reluctantly and turned his head, closing his eyes as if it would remove himself from the situation.
Leland quickly made sure he knew that wasn't true by tweaking one of Monk's dusty, peaked nipples. The brilliant detective writhed even more desperately than before - if he had been sensitive before, the orgasm had only made everything much, much worse.
Leland spent some time swirling the come around Monk's body, from his extremely well-defined pectorals to his taut abs, his sculpted back, his toned legs and thickly muscled waist. By the end, Monk was covered in his own spunk, and Leland felt extremely pleased knowing how much that must have driven the other man insane.
"G-go away," Monk muttered, curling in on himself. "You had your fun, didn't you? Just leave me alone."
Leland snorted - apparently, even a guy like Monk could be an idiot at times. "You fucking kidding me, Monk? I just made you come your brains out from some nipple play, and you want me to leave? Are you honestly kidding me right now? I have every right to stay here and fuck you as many times as I want."
Monk made one last attempt to crawl away, one muscled arm scraping at the floor as Leland flipped him over for better access to his trembling ass.
"N-no!" Monk yelled out, but his screams quickly turned pleasured and helpless as Leland dove in and began tonguing his tight entrance.
"This is only the beginning, Monk," Leland muttered to the neurotic detective.

Four hours passed. Leland enjoyed fucking Monk in every way he could think of, debauching him so utterly he could barely move, so much he knew he would have to find the culprit if only to ask him where he got the powder from - oh, poor Monk, honestly thinking this was the end of it.
The muscled man lay in a pile of his own come, one hand vainly covering his softened cock while the other tried to wipe away the dried come on his face.
Leland sighed, sat down, and stuck a finger back into the genius detective's gaping ass. Monk let out another scream, the effects of the aphrodisiac still too much for him, and then came one last time. Barely any come came out, and yet it was so intense Monk passed out immediately after. Leland had finally done it - he had fucked Monk to complete unconsciousness.
Leland sighed, as if he had been unfairly burdened, and picked up Monk's limp body, carrying it to his car. He would have to buy some restraints, some vibrators and butt-plugs and cock rings and such. He would have a hell of a time trying to convince Monk to give it a try, but, at the end of the day, it didn't really matter what he thought. Leland, after all, had just utterly violated him in complete defiance of his clearly stated desire to be left alone - he didn't have rights anymore, did he? Not when it came to Leland, at least.