For a second, the world seems to hold its breath as the crystal shines quietly.
Then a surge of power throws you back. The world turns red as the crystal's pure white light darkens to a passionate scarlet. Stained by your true desire. The shining motes drifting across your walls become spinning sparks of orange and vermillion flame, reflecting the sudden swell of emotion as something deep inside you is unchained. Your clothes burn away from you into black smoke which quickly despised by a wind unfelt; leaving your body exposed to the red light.
You gasp in surprise and momentary fear, then moan in pleasure as heat blossoms within you. Your deepest wish... Your body hair disappears, your skin turning a dusky red to match the light; it is smooth and slick with sweat. Your darkest dream... Your shoulders narrow, your masculine chest puffing out, nipples engorging as your pecs expand into buoyant breasts. Your hips crack as they push outwards, your butt and thighs swelling around them.
Your truest desire...
Is sex! Endless, passionate, lustful, sinful, orgiastic debauchery!
You'd tried to tell yourself you were an ordinary young man, pushing aside the shameful and confusing thoughts. But as you moan whorishly at the feeling of your manly body being warped into wicked, seductive femininity, you can no longer deny it.
"Ohhh... yess-ss-ss...!"
You hiss in ecstasy through your teeth as they sharpen into fangs. Fear and surprise are wiped away by the pure intensity of your desire, your lust. Tainted, infernal lust swelling with your breasts, with your balls, with your cock as it springs erect; long and fat, the head tapering to a point as it starts to leak pre-cum. Your ears grow into points; your sclera turn black, your irises burn crimson, your pupils narrow to slits. Horns push out of your forehead as bangs form around them, your brown hair turning a silky black and growing past your shoulders.
Bathing in the power radiating from the crystal, you also start to levitate as you feel the crimson glow stoke the hellish fire of lust within you. Your balls feel so full and heavy, churning out new demonic seed as a weak orgasm ripples through you, expelling your human cum. Groaning in rapture, you clutch at a large new breast with long delicate fingers tipped with burnished black claws; with your other hand you pump at your demonic cock, using your old semen as lubricant. You feel like a woman, but as you want sex in all its forms, you are not losing your dick but gaining a better.
But it is still not enough for the sexual need burning through you, and so it opens another outlet: a swelling behind your balls that splits into fat labia, a throbbing bead forming in clitoral hood and a hot wet passage opening deep up into you where an achingly empty womb and fertile ovaries bloom. Your lust floods out, oozy female desire that flows down your inner thighs and drips to the floor, filling the air with the intoxicating sexual perfume of a succubus.
"Yeeeeessssss..."
Oh yes you embrace it! You want to be a slutty she-demon, a predatory harlot of darkness and desire! Your back arches, snapping into a feminine curve, putting your weighty breasts on proper display. They are now FF cup, capped by dark red-black areolae and puffy nipples fat with the promise of lactic corruption. Your stomach has tightened into a solid core, your waist narrow before the child-bearing flare of your hips; a heartbreakingly perfect hourglass. Smoothly rounded and powerful thighs lead down your long, glamourous legs and cradle your plump, smooth ballsack and obscene footlong devil cock. Your butt is large and heart-shaped, and as your figure settles into its ravishing glory your tail slithers out above it; red and smooth-skinned, it lashes in pleasure, a long, barbed black spade forming at the end.
Your horns also finish forming, red at the base and turning black as they curve slightly back over your head. And finally, with an exultant orgasmic cry, you reach your true climax. Jet after jet of cum spurts out as your back erupts into two wide bat-like wings, black membranes stretching triumphantly between red-hued fingers. You paint your table and the thin carpet with your demonic seed, off-white streaked with red and black; you flap your wings, the grip of the crystal's power releasing you to fly on your own.
You are whole, complete! Six feet of infernal bombshell, plump and unnaturally perky breasts proud on your chest, matched by your dominant cock and heavy balls already filling with another load of potent cum. Steam rises from your already scattered fluids, filling the room with the irresistable reek of she-incubus sex. Despite just orgasming, you don't feel sated at all; an endless thirst wells within you; for carnality, for power, for pleasure, for sex.
Sex was your truest desire, a dark and twisted infinity of ecstacs. Now your fantasy is real, and you are a hermaphrodite succubus, the ultimate sex fiend. Fucking is your existence. Lust is what you live for and what gives you life. You will corrupt everyone you can reach into your playmates -- or playthings. You are sex. You are lust and depravity incarnate!
And you will not be denied.