It's the perfect pussy-pleaser.

Maria's enhanced tongue was pulsating in desire as she inched closer to Stacey's spread hole. The second she touched the other woman's clit with the tip of her tongue a shudder went through her and it was as if some new instinct took over her actions.

She delicately circled the little nub with the perfect level of pressure and friction, her saliva adding a slowly accumulating tingle that Stacey only barely noticed for now. As she eased the yoga instructor into rougher, higher-pressure licks, tongue engulfing her whole clit almost like a clit stimulator, she kept Stacey's toned thighs pried firmly apart.

Stacey started to moan and twitch, relishing the feeling of the best oral sex she'd ever received.

Maria was just starting. Her tongue kept extending, and even as she kept up the rapture-inducing clit-licking with her superb new control of her tongue its tip squeezed past the folds of Stacey's pussy lips and into her wet vagina, then reached up, unnaturally long and flexible, to hit her g-spot.

For Maria the feeling was not wholly sexual, but something like tasting water after a hot thirsty day, or taking a deep breath after a dive underwater. The satisfaction of a fundamental need she hadn't had before. And the act was as natural as breathing too, like a maestro of cunnilingus had taken over her body though she'd never done it one in her life.

Stacey squirmed and bucked her hips in response to the pleasure she was receiving. She started to moan and beg, and tried to push Maria's head deeper into her pussy. Maria resisted, she knew the pace she wanted and would not let herself be disrupted.

As Stacey's came close to orgasm Maria sensed the micro-contractions that would precede it with her sensitive tongue, and slowed her pace just enough to hold the moment back. Like a DJ building up anticipation for the drop she sped up and slowed down to perfectly drive Maria to the brink then walk her back - no magic marker instructions needed to edge her.

Only a few minutes into this a new property of Maria's saliva became apparent to Stacey, though she didn't know what it was. Wherever it had touched a pleasurable agony, a burning flush of lust, was on her skin - a new heightening of sensitivity. Even a brush of contact where Maria had kissed her thighs sent an erogenous thrill into her core, and where Maria's tongue had licked for minutes there was an agonizing multiplication in sensitivity, a growing presence of the nerve endings in her mind. Her thoughts were, quite literally, being taken over by what was happening to her pussy.

After fifteen minutes, and without much fanfare, Maria sped up just enough to push Stacey over the edge.

Her pussy exploded with squirting juices, all over Maria's tongue and face, and the latina experienced, in that moment, a sensation of overwhelming satisfaction and pleasure - a not-quite-orgasm mixed with the contentment of finishing a great meal.

She withdrew her tongue from the shaking, quivering, moaning body of your wayward girlfriend and smiled as she licked her lips to clean up the juices covering them.

"I've never felt anything like that. That was amazing Margarita, I didn't think it was possible to cum like that..." Stacey panted as she sat up, then trailed off. Her gaze was distant, her body still trembled.

"Oh my god, Finn sent you didn't he?"

Stacey's tone changed to one of fear and she shoves Maria back and tries to run, naked, out of the gym. Her knees are shaking, but she has a head start.

Sir's order were clear - if it came to a struggle Maria was to subdue Stacey by any means necessary. She stood up to chase her quarry.