A S.H.I.E.L.D Agent's Evaluation

Raising her arm with renewed purpose, Skye doubled the force of her ministration.

The stool rattled, the thrum of power intensifying greatly. Jemma felt herself being pushed backward, struggling to stay upright as the vibrations exploded back to power inside her burning core.

Basking in the sensations thrumming through her sex, the S.H.I.E.L.D scientist barely masked her ecstacy. Running sweaty hands through her loosened hair, Jemma began to pant; Somewhere along the way she had lost herself on the cusp of a mind-blowing orgasm.

"Bet you didn't consider this application for my powers huh?" Skye asked determinedly, hand still raised.

Jemma jerked in place, eyes widening; oh god, the brunette knew!

Part of Simmons wanted to scream at her friend to stop. Not here, not like this! Another part of her wanted more, for Skye to give it to her.

The empowered agent stayed fully concentrated on Simmons core, watching the woman undulate in place. Was it gay to give a girl an orgasm when they weren't touching each other?? Definitely crossed some S.H.I.E.L.D guidelines... Well, she had always been a rebel:

"So how do you feel about my powers now Simmons?? Like how I make you Quake??"

Flexing her fingers, the brunette attempted to coax more waves of energy, pulsating from her palm, into the scientist's open lap.

An orgasm shot threw Simmons and burst into shards behind her eyes, the lab going black as she was thrown into a sexual abyss. Clutching the flask tightly between her trembling thighs, she just managed to keep herself together, riding out the pleasurable sensation; until another orgasm hit.

Feeling feint, Skye's vibrations touched the lab geek in all the right places, the new Superhero intentionally masturbating her complicit friend from across the lab:

"Ohhh oooohhh, ohhh Skye!"

Skye laughed. Feeling a little too proud of herself, the brunette's attention momentarily waivered; Twisting her wrist, Skye tensed the gauntlet.

Jemma was finally over stimulated; jerking in place, the young women came hard once more. Seizing in place the woman lost all composure. The S.H.I.E.L.D scientist crumpled:

Collapsing sideways off the stool Jemma fell to the metal floor with a clang, spilling the contents of the flask.

Skye gasped; the crash breaking her out of this naughty fugue; realisin she had gone too far. Scrambling over to her twitching friend the half-naked girl dropped to her knees, crouching over the stricken scientist:

"Jemma? Jemma?!!"

The Doctor blinked hard, still in her post-orgasmic glow. Attempting to remember where she was, Jemma went bright pink. She was drenched in sweat and the seat of her jeans were sopping wet. Humiliated, she lay in a heap.

Struggling to meet Skye's shocked eyes, Jemma sat up hesitantly beside the brunette, even as she was checked over by her apologetic friend:

"Simmons I'm so, so sorry, that wasn't funny. Oh my God did I stop you're heart?!"

Jemma grimaced; good thing she was the Doctor in their relationship:

"No, no.. Y-you just... hit the right spot. I'm fine really! Just overbalanced by, by the vibrations... Give me a minute."

Skye sat back on her haunches, exhaling in relief:

"Maybe you're right, maybe I shouldn't be going on missions just yet-"

"-You think?" Jemma replied sarcastically.

The forlorn Agent looked up at the Doctor, brown orbs turning from worry to guilt.

Struggling to support her own weight on shaky legs, Jemma staggered over to a worktop before leaning heavily on its surface.

Watching from the floor, Skye rubbed a bare arm with her cold metal gauntlet, lack of clothing practically forgotten.

Breathing shakily, the scientist blew the light bangs off her forehead, before turning to the apologetic brunette:

"So obviously you can't be trusted with your powers just yet."

Skye opened her mouth to argue, before catching the frazzled scientist's glare:

"-Okay, so I need to be kept in check. Don't you think I would give my powers up if I could?"

Jemma nodded, looking down at the busy surface, her gaze falling on the device she had been preparing. Skye was out of control. It was time for the last resort.

"What if I told you I could... switch off your ability?" Jemma asked cautiously.

"What?" Skye asked, rising to face the Doctor: "You could do that?"

Jemma nodded:

I've made you a neutralizer, something that could govern your power, even cancel them out on command-"

"-So I wouldn't be a liability on missions??" Skye pondered curiously.

Again Jemma nodded.

"There is a small catch..."

Skye looked down at the cylindrical tube, supported by a stand on the scientist's workbench.

"The prototype is powered by a powerful arc reactor to counter your strength, firing equal but opposite pulses at the source of your power."

"Okayyy..." Skye responded uncertainly.

Jemma opened and closed her mouth, no words coming out:

"Ummm, how to phrase this delicately... The device has to be very close to your core to work effectively..."

"Meaning?" Skye asked distractedly, lifting the device. It was heavy, the long, tapering shaft enveloped by a loose metal ring that slid along its length. Eyes narrowing, she ran her hand over its rounded, bulbous tip. Jemma held her breath.

"Wait..." the brunette's eyes widened:

"Is this a-"

"Removable suppository-"

"-buttplug?!" Skye finished in horror.

Dropping the device back onto the surface the Agent recoiled in shock, as if she had been burned:

"And you want me put it-"

"let me explain-" Jemma began:

"No way Simmons!" Skye gasped, hands raised:

" Fail me, fire me, I don't care, there's no way that's going up my-"

"Its perfectly sanitary!" Jemma explained.

"Sooo not the issue!" Skye exclaimed.

"Just think of it as a failsafe. This way I can always keep your powers in check in the field!"

The brunette grimaced: "Simmons c'mon!"

"Skye I can't in all good conscience let you go out there without a fall back position. Otherwise you'd be a danger to the whole team!"

The agent bit her lip; Even by S.H.I.E.L.D's micromanaging standards this was crazy. And yet, nobody else had any idea how to get her power under wraps. Short of being iced every time a phone vibrated, this at least meant she could stay conscious in the field:

"And this isn't payback for the orgasm thing is it??"

Simmons went pink; attempting to alleviate her friend's concerns while burying her own shame:

"No one on the team has to know how the kill switch works, I can even incorporate it into a suit for you, something that will conceal the device wth maybe even some sculpted support, keeping your, you know... jiggling in check."

Skye blinked, wrapping her arms round her chest subconsciously:

"And the whole time I'll have that thing up my butt..." the shapely brunette asked.

The scientist nodded. What else was there to say?

"It wont fit," Skye muttered, her resolve disintegrating.

"We'll see," Jemma replied.

"And nobody can find out about this Simmons," Skye intimated.

"Of course, full patient Doctor discretion," Jemma explained.

"Not even Fitz." Skye stated firmly.

Jemma bit her tongue. A challenging ultimatum, but not impossible. Grabbing her tablet she found the necessary form:

"You have to sign this confidentiality clause anyway, same as me since the arc reactor tech is privatised. It also confirms that you give your full consent for the insertion of the prototype."

Skye nodded slowly, scanning the contract. Taking a stylus the brunette signed her name hurriedly:

"Whatever it takes to get me back out in the field Simmons. I'll do anything."

"Good. Now drop your pants," the brunette instructed casually.

Skye raised an eyebrow.

"What?" Jemma smirked, tugging on a pair of rubber gloves:

"so I'm a little cross about the orgasm thing."

Skye nodded; that figured.

Following Jemma's lead, Skye stepped over to the scientist's more open work surface. Unbuckling her pants hurriedly, the brunette leant on her elbows, wriggling the tight garment over her hips to give her friend access to her behind.

Grabbing a vial from across the lab, Jemma attempted to maintain a level of professionalism, deciding against commenting on her friend's vulnerable position: bottom now deliciously exposed to the scientist's newly curious gaze, matching pink underwear all that was left to conceal the girl's modesty.

"Right, first I'll lubricate your rectum with a resonance gel," Jemma stated calmly, perching on a stool before rolling behind her friend, on the same level as her raised behind. Reaching forward Jemma palmed Skye's waiting tush, taking a cheek in each hand.

Skye bit her lip, putting on a brave face even as she attempted to hold still; Jemma's questing fingers making her uneasy.

Meanwhile the Doctor gently lower Skye's cotton shield, exposing her friend's shapely olive cheeks to her appreciative gaze, the round orbs tantalizingly raised by the hem of the pants Skye held around her thighs.

Cupping each orb, Jemma ran her fingers along the brunette's tight crevasse, gently parting fat flesh. Evaluating Skye's round pucker, Jemma grimaced, the small hole appearing to tighten before her. Apparently the agent would need some convincing.

"Skye, I need you to relax or this will be more difficult than it has to be."

"Sorry," Skye muttered sarcastically over her shoulder, "I'll let you shove a finger up my ass if you remove the stick up yours..."

"What did you say?" Jemma responded curtly, glaring at the Agent's quivering behind.

"Nothing."

Jemma shook her head, quickly attaching a nozzle to a waiting gel pack. Time for stage 1: lubrication Squeezing the end, the brunette was satisfied when a fine stream of liquid sprayed from the bottle. Lining up the tip, the Doctor administered her solution.

Skye gasped as she felt the nozzle slide inside her rectum. Steeling her resolve, she blew at the wavy brown bangs that had fallen across her face and gritted her teeth. Nevertheless the young Agent yelped as the lubricant sprayed into her rectum, the cold liquid coating her back passage.

"Now that's better," Jemma stated calmly, removing the empty packet and watching the tight pucker contract, a sliver of gel rolling down the inside of Skye's thigh:

"Now let's open you up a bit shall we?"

Leaning forward, Jemma twisted and wriggled her finger inside Skye's butt, gently stretching her rectum. Feeling only minimal resistance, the brunette tested the girl's elasticity, adding a second and then third finger to the agent's tight sphincters.

Staying calm, Skye bit her lip as Jemma tugged apart her opening, feeling warm breath rush into her most private quarters. Bending her knees slightly, the brunette struggled to accommodate the Doctor's questing fingers for what felt like minutes; Simmons probing her depths while stretching her hole wide open. Then suddenly, Skye felt the intruders release their grip. The brunette sighed in relief.

Satisfied with the gel covered digits she removed, Jemma reached over to a workbench; Stage 2. Unscrewing the sliding funnel from her device, the Doctor grabbed a speculum before turning back to Skye's waiting behind:

"Now I'm going to use this ring to hold open your-"

"-Don't say it!-"

"-Sphincters." Jemma finished abruptly:

"I need you to widen your stance a little and hold you cheeks open please."

Skye grimaced; shuffling her feet apart, the brunette allowing her pants to fall around her ankles before gripping her own derriere. Tugging at plump flesh, the agent hoped that by acquiescing to the scientist's bizarre requests she could stave of further embarrassment. She was wrong.

Reaching forward, Jemma bit her tongue as she lined up the small hoop, before pressing it against Skye's open pucker.

The brunette hissed as the cold metal stretched her open, the funnel widening her exit painfully. Releasing her ass cheeks, Skye gripped the workbench before her, bending over double to alleviate the tension in her asshole.

Jemma smiled; so far so good Time for stage 3:

"Okay, now I just screw in the neutraliser and you're all set."

Skye blinked, eying her reflection in the metal surface before her; hardly a super heroic situation.

Lifting the long metal shaft, Jemma lowered the head between Skye's open butt cheeks, the path clear for a proper insertion. Lining up the device, the Doctor looked up toward the brunette's shoulder:

"Now remember to stay calm and let me do all the work, no resisting."

Biting her tongue, Skye gripped the tabletop hard.

Seeing Skye tense, the scientist sighed, electing to move forward regardless.

Sliding the head through the enlarged opening she had created, Jemma watched with a small sense of pride as the device slid upward into the Agent's waiting asshole.

Skye gasped as cold steel stretched the Agent like never before, the rod entering her centimeter by centimeter, filling her slender frame. Feeling her rectum expand to accommodate its girth, the brunette's torso undulate, her eyes watering as the pressure built.

For the young Agent the experience was overwhelming, allowing a colleague to do such humiliating things to her and all for her own benefit? Skye gritted her teeth, trying to be strong even as the tip of the device pressed against her colon.

"Nearly there.." Jemma stated distractedly, the last few inches disappeared inside her friend.

Skye heard a click as the shaft reached its final depth.

"There! Now that wasn't so bad was it?" Jemma exclaimed, rolling away from the crouched-over agent.

"Yeah," Skye muttered, "Barely felt it..."

Tugging her pants back on, Skye was alarmed to find the tight fitting clothing was now much harder to pull up over her hips; ass cheeks now spread centimetres apart by the newly inserted butt plug.

Removing her gloves, Jemma stepped forward, resting a hand on Skye's belly:

"How do you feel?"

Rolling her hips, Skye grimaced, feeling an unnerving sensation of fullness:

"Like a turkey on thanksgiving."

Seeing Jemma's perplexed expression, the brunette elaborated:

"Stuffed."

Jemma tutted, grabbing her tablet to scrawl down her latest data:

"So how is your range of movement?"

Skye frowned, raising her arms before flexing her abdomen and twisting in place. Other than a strange twinge, her body relented.

Jemma beamed: "Excellent, you're doing really well Skye."

Switching app, Jemma studied the device's readouts before taking control:

"Now let's do a calibration setup."

Skye's eyes widened:

"Uh, Simmons I'm not sure if I'm ready for a test run..."

"Nonsense, you're doing so well!"

Clearing the space in the centre of the lab, Jemma stepped away from the nervous Agent:

"Now let's go again, but this time start with a weak unfocused frequency and I'll activate my device. Once I find the wavelength that will compensate for your power you'll increase and vice versa. Hopefully the probe will be able to compensate for the full range of your frequencies. Once I have these readings I'll setup a program that will be able to match whatever level you are on. You'll be safe in any situation!"

Jemma smiled proudly:

"Its that simple."

Skye shook her head slowly. 'Simple?' What had she signed up for?? Standing in the open space in the centre of the lab, the brunette agent raised a gauntlet clenching her fist.

Jemma watched as the room began to shiver and shake, feeling the familiar vibration course up through her feet. Pad in hand; the young scientist pressed the button on screen.

Skye gasped; a commanding subwave undulating upward from her nethers. Twitching, the agent momentarily lost her concentration before continuing to emit her vibrational powers.

The device in the girl's rectum sent deep, intense throbbing sensations throughout her core, touching every organ, activating every nerve. Of its own volition the metal shaft began to move, sliding back and forth with each beat. Looking down at her bare belly, Skye saw her own flesh quiver in time.

"Skye, it's working!" Jemma exclaimed, beaming at her subject as the lab stopped shaking:

"No more quakes!"

Turning her gaze back to her surroundings, the agent balked in amazement: the equipment was no longer shaking. The brunette stared at her gauntleted hand, realizing her power had been neutered.

"It works!" the scientist exclaimed excitedly, scrawling through her readings, "the prototype is barely ticking over! By reflecting your power back onto you I can cancel it out!!"

"Yeah..." Skye responded uncomfortably, feeling her waves of energy dissipate in her belly: "Except-ummm... so the quaking is now inside instead of out??"

"Right, now try harder!" Jemma responded, barely listening: "Try to really shake things up and I'll keep you in check!"

Flexing both arms, Skye obeyed slowly.

Feeling the lab begin to shank once more, the Agent allowed herself a small smile; secretly glad she could still use her power if she upped her exertion. That smile turned to a frown as Jemma flicked at her screen, raising the bar in tandem:

Skye shuddered as the device in her behind began to undulate more rapidly, pumping insistently at the same frequency as her output.

The brunette groaned, screwing her eyes shut as her own powerful wavelengths pulsed through her core, stirring at her insides. Hitting her stomach and bladder, Skye felt the sudden need for release. Then the vibrations reached her pussy.

"Ahhhhh... Simmons, its, mmm that's enough right-t?"

Seeing the other Agent clutch her belly, Jemma finally relented a little, stepping closer to her subject:

"I know it's a little overwhelming, but I need you to up keep trying okay?"

Skye nodded, even as her big brown eyes began to glaze. Struggling to keep her arms up, the brunette pushed herself to increase her ministrations:

"Unnggh!!" Skye yelped, the device instantly matching her increased power, firing waves of energy throughout her core. The brunette shivered and shook, the stimulation proving tough to ignore as the contents of her bowels began to bubble.

Beginning to sweat, Skye felt her muscles tense and loosen with each every pulse of the tool wedged in her rectum. Each time, she squeezed cold steel, the brunette biting her plump lower lip.

For the young agent it was like being masturbated and needing a dump all at the same time, the girl amazed as her ability overpowered her own body.

Jemma watched, fascinated as the brunette devolved before her, Skye transformed from cocky fellow agent to a bewildered, shivering mess in just 2 minutes. Checking her readings again, the scientist shook her head:

"Its not enough Skye, I need you to really push, break every glass in this room if you have to, just don't give in."

Skye jerked, a sharp wave causing her hips to shake, almost overbalancing:

"I-I can't..." the brunette panted, her eyes beginning to water:

"Its too much!!"

Reaching for the other agent to comfort her, Jemma was amazed when the her friend swatted her hand:

"D-don't touch! I'm, s-sensitive right now..." Skye exclaimed apologetically.

Jemma scrutinized the girl carefully; the brunette had goosebumps all up her arms, and sweat dripped over her smooth olive skin. The Doctor understood; all those vibrations coursing through her system! Just like Skye had done to her...

Behind her back, Jemma pressed on the tablet, the scientist raising the bar:

Skye shook, the probe now taking longer strokes into her behind, pummeling her rectum with deep pulses that radiated throughout her system. She couldn't help but squeal:

"H-how much longer do- mmMMM!!! D-Do I have to do this?"

As long as it takes to calibrate the device," Jemma replied firmly, as she stepped back from the brunette, increasing the power on her tablet yet again.