Coming in under the wire, my Halloween story is here! The pairing was Dave/Em (of course!) and the costume was a police officer. After much debate, I decided to approach it from Em instead of Dave. Besides, how hot would it be for Em to be in a police uniform and Dave in handcuffs?

I don't own Criminal Minds. And I don't own Halloween.

Song prompt: "Thriller" by Michael Jackson

Thriller

Dave Rossi was ready for his second retirement and it couldn't come fast enough this time around. Pouring himself a strong drink - three fingers high - he took a long gulp and tried to get his bearings. As the potent, aged whiskey coursed thru his veins, he felt the fire slowly replace the exhaustion.

Sitting down in his favourite chair, he closed his eyes as he kicked off his expensive leather boots. Letting out a long groan, he wondered how he had let himself get roped into taking Jack and Henry trick or treating.

Sipping the liquid, he made a mental note to call for an appointment in the morning to get his head examined. He always applauded his mental astuteness, but it was sure some of his faculties were slipping.

It wasn't that he didn't adore the boys, but he should have thought twice about volunteering his services when JJ and Hotch had commented that they were not going to be able to take the boys out trick or treating. Having nothing better to do, he had raised his hand. How hard could it be? Outfits, bags, walk around the block and take candy from willing strangers who felt the need to spend hard earned dollars on sugary snacks meant to rot teeth. It sounded like a great plan.

Okay, so there was a difference between trick or treating with his nieces and nephews thirty years ago and go for round two in present time.

He was never volunteering himself ever again. JJ could pay him handsomely…or she could blackmail him, but the answer was no. Besides, what party did she have to attend that was more important than her son's pleasure? Hotch had had an excuse - he had to go out of town to interview a serial killer on death row.

At least he hadn't been required to put the boys to bed…JJ had saved him from that by arriving right after he had shuttled the boys home. Was it wrong that he had taken some devilish delight in Jack and Henry consuming two Kit Kat bars and a small bag of candy corn before the door bell rang? A smile tugged at his lips.

Now the peace and quiet had been restored and he was going to recuperate until the sun came up. Groaning again as he shifted his weight against the protest of his weary joints. How much time did he have on the books? What would he have to tempt Strauss with to let him take it all at once?

The sound of a door bell jolted him from his reverie. What the hell?

Carefully, he pulled himself up. The porch light was off and the car was in the garage; there was no reason for ghosts and goblins to be ringing for treats. Unless it was a trouble maker looking to make a trick….

Looking thru the peep hole, he paused, then did a double take. Was that a police officer on his porch? Ah, hell.

Quickly he punched in the code to disarm the alarm system, then he unfastened the locks. Swinging the door open, he started forward.

"Evening Officer. How can I help…?" Dave asked and then stopped as the person in blue raised their head. "Emily?"

The brunette smiled wantonly. She reached behind her back and produced a pair of handcuffs.

"It's Officer Prentiss," she corrected. "And I have a warrant for your arrest." She swung the metal cuffs around. The light from the foyer cast a glow on the metal restraints.

Dave searched his brain for a reply. A writer by trade, but he was at a loss for a smart come back. As his eyes roamed Em's lithe body from head to toe…and back again, he took in the tight blue authentic uniform with badge, name tag, and head gear. And his body came to life.

"What are the charges?" Dave asked with a smile.

Without replying, Em slapped the cuffs around Dave's wrists.

"HEY!" he protested as the moment of fantasy turned into reality. "What…? Emily, what is happening?"

"You have the right to remain silent," Em recited from memory. "Any thing you say or do, can and will be held against you in a court of law." Turning Dave around, she led him into the foyer and closed the door. Throwing the dead bolt, she faced her captive.

"Upstairs," she ordered huskily.

"Wait! Upstairs? Why?"

"I have to take you to the holding cell."

"Em…."

"Officer Prentiss." Grabbing the chain between the cuffs, Em tugged Dave up the stairs to the second story landing. "Before the night is over, you'll get it right."

"What have you done with Emily Prentiss?" Dave asked breathless from trying to keep up with his younger co-worker.

Em turned around. "You have the right to remain silent," she repeated.

Pushing open the door on her right, she pushed Dave inside. Then she turned on the small bedside lamp.

"Where did you get that outfit?" Dave asked as the light from the main room helped him to see the delicious curves the uniform brought out more than he had ever imagined.

"You don't follow orders well, do you?" Em asked and put her hands on her hips.

"I'm innocent until proven guilty," Dave argued.

"That's what you think," Em purred. "Then keep talking."

"I have the right to call a lawyer."

"A lawyer can't help you out of this."

"Don't I have the right to hear the charges?"

Reaching into her breast pocket, she pretended to take out a piece of paper. Making the motions of unfolding it, she looked at Dave as she recited the charges one by one.