The claustrophobically small room is eerily silent apart from the faint rasping of labored breathing that reverberated off the damp stone walls and the hourly hiss of pressurized gas, followed by the slight squeaking of rubber on rubber. Only the tiniest mote of light filters into the room, flickering candlelight projected through a crack in the trapdoor above. For the first time in weeks, the bound figure hears footsteps echoing down the hall leading to the trapdoor. Three figures clad in black and white garments climb down a rope ladder lowered from above and place a lit torch in a sconce on the wall. Orange-red light reflects off the newly revealed body of a woman, entirely encased in a heavy rubber habit and strapped to a wooden crucifix on the wall. Tubes running from the ceiling pump aphrodisiac gas into her leather mask at regular intervals, and around her waist is a heavy iron chastity belt.

"Sister Prudence, can you hear me?" asks the first figure, an older woman wearing a similar but less restrictive leather habit. The bound figure wiggles her fingers, the most movement she can muster while so heavily pinned to the cross. "I've brought you visitors today."

She gestures to the two figures following down behind her, a timid looking habit-clad younger woman and a burly man in a priest's vestment. "We're here to teach one of our newer initiates a lesson about the price of failure."

The Mother Superior leans in towards the bound nun and grabs her by the chin, forcing her captive to look her in the eyes. She coos at her captive in a sickeningly sweet tone. "Play along and I'll consider taking time off your sentence." Her face contorts into a twisted scowl. "If you resist in any way however, I'll triple the amount of gas, brick up the door, and forget you ever existed."

Thick, foggy lenses on the bound nun's mask and the glaze over her eyes from the weeks of edging torment make it difficult to see her reaction, but the Mother Superior smirks as she sees the glint of raw, animalistic terror in Sister Prudence's exhausted eyes. "I take it you understand."

Looking back to her two companions still wearing her smug smirk, the Mother Superior begins her lesson. She points to the ground, and immediately the younger woman falls to her knees and assumes the prayer position, humbling herself and worshiping her Mistress. While she kneels, the priest holds her shoulders with his powerful hands.

"Initiate." the Mother Superior barks. "What is the most holy object in our faith?"

"O-our bodies, ma'am." she replies, keeping her eyes cast downward in submission.

"Correct. What is the most sacred part of your body?"

"My grail, m-ma'am." At the mention of her most sacred place, she subconsciously spreads her legs to offer it in supplication.

"Correct again. Who owns your body, your soul, and your grail?"

"God, ma'am."

"Indeed, and as God's representatives on Earth, you are to give all that you would to God to your superiors in this abbey. Am I being clear?"

"Yes ma'am. Everything of me is yours to own."

"Perfect." the Mother Superior says with a pleasant grin. "You are ready to be bred for the first time."

The initiate's face lights up a bright red, and she shudders with excitement as the priest's hands wander down from her shoulders to her breasts. Before the priest can hike up the young nun's habit and get to work burying his face in those milky white thighs, the Mother Superior interrupts them with a grim warning.

"Remember now initiate, your body is property of the Order that you are leasing. If you use your body without our permission or use your Holy Grail as a whore's honeypot, you will be punished like a whore. If you misuse your Grail, it will be kept from you through enforced chastity. If you misuse your entire body, however, we will deny you everything."

The Mother Superior turns back to Sister Prudence and runs a slender gloved finger along the middle of her chastity belt, right where her sex would be if not buried under ten pounds of metal. "Oh Initiate, if only you could know what delicious agony your fellow Sister is in right now, you would appreciate our gifts so much more."

The initiate is already leaking dewy droplets on the floor from her needy cunt, and she squeals in delight as the priest rams his fat cock inside her. Sister Prudence can only watch and squirm as the priest's meaty member slams inside the girl over and over, her own over-aching pussy desperately burning with neglect and desire. Her pulse explodes into a staccato drumbeat as the priest slams his hips into the initiate's one last time and pumps an inhuman amount of thick, gooey cum into her fertile, unprotected young womb. Prudence seethes in rage and desperation at the holy seed spilling out of the initiate's grail as the girl collapses in exhaustion. Every fiber of Prudence's being screamed at her to break free of her bindings and slurp every drop of that creamy, thick goodness pooling on the filthy dungeon floor, suck the Holy Father's dick until it's spotless, even lap up every ounce from her sister's overstuffed belly. Nonetheless, all she can do is squirm even harder.

Contentedly smiling at her victim's agony, the Mother Superior announces that it's going to be a long night and flips the switch to give Sister Prudence another dose of aphrodisiac. As the gas mixes with the smell of pheromone-laced cum that spreads through the room, Prudence can take no more. Fat tears roll down her covered cheeks and she screams into her mask, but the giant dildo gag in her mouth ensures that all that escapes the mask is a pathetic whimper.

Hello all! Today I'd like to walk you through a day in the life of the unluckiest BDSM nun in existence, Sister Prudence. Locked in a room for months and pumped full of aphrodisiacs with nothing to occupy your mind but the feeling of your desperately cock-starved Holy Grail? Whatever she did must've been pretty damn bad, but given how most of the nuns in this abbey are extreme masochists, she probably did it on purpose. The theme that I'm trying to create here is a combination of nun fetishization and heavy BDSM, so if neither of those are your forte, this might not be the prompt for you.

The kinks I plan on centering on include all elements of BDSM, chastity, religion/spirituality, training, and humiliation. I'd like to consider myself open to kinks, and pretty much as long as it's not a limit I'm into it. Speaking of limits, I won't work with any of the traditional extremely gross/illegal ones. One more condition I ask is that your character be feminine if not female. If your character is male/trans/etc, expect heavy feminization to be included in the RP as well given the matriarchal nature of a convent. This can be either short or long term depending on how well we kick it off, and I'm open to either. Hope to hear from you all soon!

Oh, and just a reminder. If this post is up, it's open!