Title: It's Necessary
Disclaimer: Not Mine, No Profit Made.
Rating: NC-17/FRAO. M
Prompt: : Reid/author's choice; one-sided dirty talk over earpieces.
A/N: Just to mix things up a little, I'm gonna make this Reid/JJ. I will warn you that this is pure filthy smut. HET smut at that! Never thought I'd hear myself say that! :P

"This isn't going well. Who thought that it would?" JJ asked, as annoyed as she was afraid. The man she loved was not only in great danger but he was also on the dance floor of a nightclub, with a particularly attractive woman grinding her ass into his crotch.

JJ wasn't feeling so much jealous as she was possessive. She trusted Spencer with all her heart she just didn't like to see this woman, this killer, all over her boyfriend.

But by the look on her face, the UnSub wasn't getting what she was after. The profile said that she was killing men between the ages of 25 and 35, all fitting a particular physical type, one that Spencer fit perfectly. She would seduce them, arouse them to make them more suggestible and then lead them away where she would shoot them. Sitting in the surveillance van and watching the woman on the screen, dry humping Spencer and looking rather disappointed, JJ worried that everything was going to be lost.

She had to take a second to consider the absurdity of being disappointed that another woman was failing to give her boyfriend an erection.

"Kid need's to get it up if we're gonna get her." Morgan sighed, his crude wording belaying the concern in his eyes.

Pursing her lips, JJ decided that she knew what needed to be done.

Turning to Morgan she hissed, "If you tell. Anyone. About this, I will kill you."

Ignoring Morgans rather intimidated indignation, JJ switched on the com to an isolated frequency so the others behind the club wouldn't hear, and lowered her voice to as seductive a tone as she could given the situation.

"Spencer, baby. Don't think about where you are. Think about the other week. After the grueling case in Ohio? Remember that night? Remember how loud we where, how many times you made me come?"

On the screen Spencer's eyes widened, but he remained silent. Blocking out the stunned, "Oh." from Morgan beside her, JJ focused.

"I remember the way you were almost desperate to get my clothes off, to feel my skin against yours. I wanted that too, so bad. I do now. I wanna kiss you deep, suck on your tongue in that way that makes you moan. God that feels so good doesn't it Spence?"

As Morgan turned away and pretended to read some suddenly crucial papers, JJ watched Spencer gulp and close his eyes as his 'companion' suddenly started grinding against him harder. JJ took that to mean her words were having the desired effect.

"I want to push you onto the couch and straddle you. We're still kissing, tongues stroking over one-another. You'll press your hands into my hips and grab me, pull me forward. God I love it when you do that. I love feeling you hard against me Spence. I love pressing down onto you and hearing you gasp. The way your fingers press into the skin on my waist. Have I ever told you it leaves bruises when you do that? Have I ever told you I've gotten myself off, looking at them in the mirror. I touch myself and think of you, of your hands on me."

On the screen, Reid was now gripping the woman's hips, eyes still closed letting JJ know with a certainty he was thinking of her, and pushing forward to meet the UnSubs thrusts.

"I think it's working." JJ said to Morgan, releasing the button on the com, "I think he's getting aroused."

"He aint the only one." Morgan mumbled, refusing to turn around.

Rolling her eyes, JJ got back to work.

"When I don't think you can take it any more, I'll move away and kneel down between your spread legs. I'll run my hands slowly up your thigh, teasing you. I'll unbutton your pants and suck on your hard cock through your boxers. You'll reach down and thread your fingers through my hair, gripping and pulling just enough. When I finally release you, I'll draw my tongue over your head, licking up all the pre-come you've released for me. God it takes good Spence, it tastes like you. I want you so bad." That wasn't that much of a lie. She didn't know if it was the visuals themselves, the validation that it was her and not this murderer who was arousing her man or the long repressed exhibitionist side of her she always knew she had enjoying Morgan listening. But whatever it was it was having an enormous effect, she was so wet.

In the club, Spener's dance partner was starting to cheer up. She turned around and Spencer had to open his eyes. JJ stepped it up a notch, not wanting him to loose ground.

'Or wood.'

"When I take you all the way in my mouth, you always tighten your grip in my hair. It makes me want to give up and just fuck you right there but I don't. Instead, I'm gonna suck on the head of your hard throbbing cock, running my tongue over it and into the slit." Her breathing was getting heavy now and, after a quick glance back to ensure that Morgan wasn't looking, she reached down and rubbed herself through her thin pants. Closing her eyes, furrowing her brow and trying not to moan, she breathed through it and opened the com again.

"I can feel you twitching and throbbing in my mouth, it's so hot. I can't wait to feel you inside me. I can't wait for you to drive into me like you always do. To fuck me so hard, so much harder than anyone would have ever expected." She was rubbing herself much more now. The material of her pants and her thong where dampening the effects somewhat but it didn't matter. Though a part of her felt guilt for getting aroused from a situation in which the man she loved could die, she was just do damn horny to stop now. She could probably come without touching herself at all.

"Oooh, god Spence, I love the way you feel inside me." She was close now, she was making noises she didn't think Morgan could mistake but she didn't care. So close. "I need you to fuck me Spence."

Finally looking back at the screen, JJ saw their target lead a dazed and probably rock hard Reid towards the back entrance where she knew Hotch, Rossi, Prentiss and a dozen LEO's where waiting.

Lowering her head and closing her eyes, JJ only had to rub her clit through the material a few more times before she came with a quiet moan.

After a few seconds they got the all clear through the radio, Reid was safe. With both the perilous situation and the haze of arousal gone, the atmosphere in the van between JJ and Morgan was probably so awkward it could kill.

"That was. Erm." Clearing her throat, JJ realized she was completely at a loss on how to explain.

"Yeah." Morgan grunted still facing away. For a moment JJ considered that he was too put off by her actions to look at her but then she remembered, "He aint the only one."

And with the knowledge that she had given both her boyfriend and his best friend a boner, not to mention masturbated in-front of said friend, JJ was out of there.

"I'm gonna go check. On Reid." She said with as much professional decorum as she could muster.

"Okay," Morgan replied, obviously embarrassed, "I'll erm .." He looked down and then immediately back up, "I'll be out in a few."

"Okay." JJ said, struggling not to giggle before heading out to find Spencer. She had a very long, very hot night planned for them.