This is a Mary Sue, plain and simple. It's also PWP, and rated NC-17 for graphic playing with boy toys. Enjoy! I did :)

WHEN NIGHT FALLS

She waited until late, knowing that no one would really give a second thought to her activities, but wanting to be seen by as few people as possible. Quark's was almost quiet, only a few patrons still nursing drinks. She nodded once to the barkeep in passing, making her way swiftly up the winding staircase to the upper level of the bar and on to the holosuite she had reserved only a few minutes before. She palmed the door open and stepped inside, carefully locking it behind her. It wouldn't do, to have someone accidentally stumble into her fantasy.

The room was only dimly lit, mostly by candles. The only furniture was a large four post bed. Chained to the headboard was a young Human male, his golden skin shining with a thin layer of sweat. He was naked but for a piece of black silk tied across his eyes. At the foot of the bed was a Cardassian male in his prime, also bound and blindfolded. They knelt facing one another, the only sound that of their quiet breathing.

She took a moment to admire them, watching as they both turned blindly in the direction of her footfalls. Neither spoke, but a soft moan rumbled in the throat of the Human. A shiver chased down the Cardassian's spine at the sound.  It took only a moment to strip off her clothes.

Coming closer she leaned over the Cardassian, drinking in the way the candlelight silvered his skin and danced along the edges of his scales. A strange scent rose from him, spicy and dark. Bending her head she tasted the ridge that ran from his shoulder up the side of his neck, feeling him shudder as the flat of her tongue swept upwards. Yes, he tasted as good as he smelled. Reluctantly she left off from exploring that fascinating territory. Cardassians had several levels of arousal, and he was only barely at the first, the edges of his scales darkening and flaring. If she worked at it she could bring him through all of them, but she was here to enjoy herself, not work. She would let his imagination to the work for her.

She turned towards the Human. With silent nudges and caressing pats she had him position himself laid out before her, as far as his restrains would allow. The Cardassian was a full course meal, she thought, this beautiful boy an appetizer.

Taking her time she kissed the sharp angle on the bone at the inside of one ankle, licking up the length of the calf, nuzzling the curve at the back of the knee. Then on to the tender inner thigh, inching upward with tiny sharp bites and gentle soothing laps of her tongue, listening to his panting breath and watching his slender hips rising from the bed with need. She continued upward, blowing gently against the pubic hair and causing it to stir. He arched his back, hissing between his teeth.

A quick glance over her shoulder at the other one, listening, imagining, straining at his bonds in silence. He leaned as far forward as he could, his skin darkening to the color of storm clouds. Ah, but he was beautiful.

Turning back to the Human. Taking the same leisurely route up the other leg, tasting the bitter salt of sweat, from ankle to groin. She perched between his trembling thighs, wanting to swallow the pillar of his manhood whole and restraining herself. Delicately she licked the pearl of pre cum at the slit.

"Allah!" he screamed, jerking helplessly in an attempt to gain more stimulation. From behind her a groan almost of pain, laced with desire.

Less than patiently she waited for him to calm and settle. When his breathing was finally even again she ducked her head and lapped at his testicles, the crisp curls tickling her nose, before carefully wrapping her lips around the tender sacs, listening intently to his voice on the fine line of hysteria as she gently poked and prodded with her tongue. When she felt them tighten in her mouth she released him, leaning back on her heels in satisfaction. "Cum!" she ordered in a fierce whisper and drank in every detail as he arched his back violently and exploded with a silent scream.

The Cardassian shuddered in orgasmic delight at the sounds of release, through the first stage of his own arousal and moving on to the second. She approached him softly, and almost chucked with delight when he flinched as she settled her hands, dark against the flesh of his thighs. She dragged her nails, newly filed to sharp claws, across his skin. For him, she knew, the pain was part of the pleasure. His hiss of arousal was a vibration in the air that almost brought her to the edge herself.   She traced the flaring scales that rounded his hips, coaxing him to give her more access, as she had coaxed the Human.  Following the pelvic scales to the groin ridge with eager lips she discovered the unfamiliar taste, savoring the feel of his warmth and the almost satiny texture of his skin.  The center chest ridge beckoned her and she traveled upwards, pausing only to lathe the firm pectoral muscles and rake her nails across his sensitive ribs.  Then onward to the hollow of his throat, to nuzzle along the elegant jaw scales.  His head turned to the side in a silent plea to explore the thick corded ridges of his neck.

She grasped his jaw, forcing his head back, and smiled to herself as he tensed, feeling her breath caress the spoon shaped indent on his forehead.  When she lazily stroked her tongue over it his whole body jerked in violent spasm, him gasping for breath with lungs that refused to draw air.  Then she sank her teeth into his throat, sharp enough to draw blood from the scales, hearing him breathe in with a shuddering moan.

The sheen of natural lubrication drew her downward again, knowing he was ready now.   The scent of it was spicy, exotic.  She studied the scales here, that whirled from as large as a thumbprint at the base of his manhood to only a faint pattern at the tip.  She tasted this too, with deliberate slowness, savoring like a child with a treat.  His voice rose in a frantic babble of his native tongue, his head tossing back and forth, silk black hair in disarray around his face.  The smallest scales seemed to melt under her lips, the natural oil slicking her chin.  Finally she look him in her mouth.  His cry echoed off the walls, his companion moaning and twisting in his bounds, aroused again by what he imagines is taking place.  Liquid heat pumped against the back of her throat, and she swallowed eagerly.  Such a lovely taste, so different from anything she has tasted before. 

Back to the Human, who is panting and whimpering.  Straddling him she anchors herself with hands and legs, thrusting sharply down.  He let her set the pace before matching his upward thrusts to hers.  The excitement had been building in her to the point where wave after wave of pleasure rolls through her, each one greater, stronger than the last, her own whimpers becoming choked screams as the final wave smashes into her and she clenches tight, bringing her partner with her.  Exhausted she toppled backwards and sprawled on the bed.