Mara’s fingers close around the third mirror.

The frame is cool metal, the glass clear and slightly curved. She lifts it from the table, reads the short note still resting beside the cask, and looks at you with a spark of sharp curiosity that the Shared Heat carries straight into your cock.

“Mirror 3,” she says. “It swaps the genitals of whoever looks. Until someone comes. I want both of us to try it.”

She holds the mirror up so that both of your faces are reflected in the glass at the same time.

The change hits you simultaneously and absolutely.

A heavy, alien pressure blooms between your legs. Your cock softens, shrinks, and reshapes in a single smooth wave. The shaft and balls pull inward; soft, sensitive folds form in their place. Within seconds you have a fully functional cunt—plump outer lips, a swollen clit, and a tight, already-wet entrance that clenches around nothing. The sudden emptiness and the sharp new sensitivity make your knees weaken.

At the exact same moment Mara gasps. Her clit swells, thickens, and lengthens into a full, rigid cock—eight thick inches of flushed, veined flesh, the head already glistening, heavy balls drawing tight beneath it. Her original cunt is simply gone. She stares down at the new shaft standing hard from her groin, one hand wrapping around it on pure instinct. The first stroke makes her moan.

The Shared Heat floods both of you with the double sensation: you feel the exact weight and heat of the cock she now carries, and she feels the soft, aching emptiness of the cunt you now have. Your new clit throbs in time with every pulse of her new cock.

Mara looks up from her stolen length, eyes dark with sudden hunger.

“Your turn to take it,” she says, voice already lower.

She does not wait. She steps in, fists a hand in your shirt, and kisses you hard while the thick new cock grinds against the soft mound of your new cunt through the remaining fabric of your open pants. The heat of it soaks straight through. You can feel every ridge, every throb, against your swollen clit. Mara breaks the kiss only long enough to shove the rest of your clothes down and off. Cool cellar air kisses the wet folds between your legs. She stares at the unfamiliar cunt for a long moment, then drags two fingers through the slickness and brings them to her mouth, tasting you.

“Already dripping,” she murmurs. “Good.”

She turns you around, bends you over the oak table among the remaining cask items, and kicks your new legs farther apart. One hand spreads the soft cheeks of your ass; the other guides the thick head of her new cock to the entrance of your cunt. She rubs the flared tip up and down the wet slit once, twice, coating herself in your arousal, then pushes.

The stretch is immediate and overwhelming. Your new cunt has never taken anything before. The head forces the tight ring of muscle open inch by inch until the full eight inches are buried inside you and her new balls press flush against your skin. Mara lets out a long, guttural moan of pure discovery. Through the Shared Heat you feel exactly what she feels—the tight, hot clutch of a cunt around a cock she has never owned—and she feels every spark of the unfamiliar penetration lighting up your new nerves.

“Fuck… so tight,” she gasps, and starts to move.

She fucks you in long, deep strokes, learning the angle, the depth, the way your new body yields and flutters around her. Every thrust sends a fresh wave of male pleasure crashing through her and straight into you via the Shared Heat. Your clit grinds against the base of her cock with every impact. Wetness pours out around the thick shaft and runs down your thighs. Mara’s hands grip your hips hard enough to bruise. Her tits press against your back. The wet slap of her new balls against you fills the cellar.

“I can feel how much you like having a cunt,” she growls, hips snapping harder. “You’re soaking me. Keep dripping. I’m not stopping until I come—and when I do, we both switch back.”

She reaches around, finds your new clit with two fingers, and rubs it in tight, firm circles timed to her thrusts. The dual sensation—her thick cock stretching your cunt, her fingers working the hypersensitive clit—makes your vision white out at the edges. You come first, a high, broken cry tearing from your throat as your new cunt clamps down in rapid, rhythmic spasms that milk her cock from base to tip. The sudden tightness only drives her harder.

“That’s it—come on it,” she pants. “Give me another.”

She does not slow. She fucks you straight through the aftershocks and into a second orgasm, then a third, the Shared Heat turning every flutter of your cunt into pure fuel for her building climax. Your new body is a continuous loop of wet, clenching pleasure. Juice runs down both your legs and pools on the stone floor. Mara’s breathing grows ragged. Her thrusts become shorter, deeper, more desperate. The mirror’s magic is approaching its limit; the orgasm that will end the swap is building fast in her new balls.

She pulls out only long enough to flip you onto your back on the table, shove your legs up against your chest, and sink back into your cunt in one smooth thrust. The new angle lets her drive straight down while she stares at your face and at the place where your cock used to be. Her stolen cock looks obscene sliding in and out of your stretched, dripping folds, glistening, the heavy balls swinging with every impact. She braces both hands on the table and starts a deep, punishing rhythm that forces broken moans out of you on every stroke.

“Look at it,” she demands. “Watch me fuck your new cunt with the cock the mirror gave me.”

You watch. You feel every thick inch. The Shared Heat turns the experience into pure overload—her unfamiliar male pleasure, your new cunt being filled and stretched, the constant throb of your clit against her base. Mara’s eyes are glassy with the approaching climax. She reaches down, rubs your clit rapidly again, and orders, “Come with me. I want to feel you lose it while I’m still inside.”

The dual command is too much. Your fourth orgasm rips through you—cunt clamping hard, clear fluid squirting around her cock and soaking the table. The sudden vice-like tightness pushes Mara over the edge. She buries herself to the hilt with a broken shout and comes hard, the new cock pulsing in heavy, rhythmic spurts that flood your cunt with thick, hot cum. The Shared Heat lets you feel every jet as if it were your own; the volume is enough that it immediately begins to leak out around her shaft in white rivulets.

The moment the final pulse leaves her, the mirror’s effect ends.

Her thick cock softens, shrinks, and vanishes in a single smooth reversal. Soft folds and a swollen clit reappear between her legs. At the same instant your cunt reshapes—lips sealing, the empty ache disappearing—as your original cock and balls reform, already half-hard and slick with the mixed fluids. A final trickle of her cum leaks from the place where your cunt had been and runs down onto the table.

Mara collapses forward onto you, breathing hard, the last echoes of the male orgasm still shivering through her nervous system via the Shared Heat. She lifts her head, looks down at the restored bodies, and gives a shaky, astonished laugh.

“It’s gone,” she whispers. “Both of us. Back to normal. But I can still feel the ghost of it… how it felt to fuck you with a cock while you had a cunt.”

She shifts, the soft heat of her restored cunt pressing against your recovering cock, and kisses you slow and deep. The Shared Heat continues to pulse between you—her residual dominance from the temporary cock, your thoroughly used satisfaction from the temporary cunt, the lingering memory of the mutual swap.

The mirror lies face-up on the table beside you, glass still faintly warm.

The rest of the cask’s items remain untouched.