Penance is best served on your knees

"Then you must show you are penitent." You tell her, an evil grin hidden by the shadows. "And your particular penance will be served on your knees."

Marianne pauses a moment, as if unsure of herself, before shifting her legs around. Through the screen you see her kneel in front of the screen, with her ass on her heels, facing you through the wicker. Her hands are sitting ontop of her thighs, though her eyes remain downcast.

"You must promise to do exactly as I tell you." You say, slowly getting to your feet and adjusting your cloak.

"I swear I will. I will do anything to show my devotion to the goddess. Please punishment me." She whispers, head still dipped low. Her turn of phrase gives you pause. Could she perhaps have planned for this? Anyone standing nearby would have seen you step into the booth, and your sexual proclivities weren't exactly a secret around the monastery.

You lift the wicker screen, opening up a square window between the two booths. Marianne glances up, but can't see your face in the shadows, particularly past the throbbing cock now bouncing freely before her.

"Wha- what is this?" She stammers, pretty blue eyes transfixed by your rod.

"Your penance Marianne. You must show your devotion to the goddess by devoting yourself to her representatives on Fodlan. You are going to worship this cock as a display of your worship of the goddess."

She gulps and reaches out a dainty hand towards your shaft, tentatively brushing her long finger tips against it. Her touch is electric. "What should I, um, do with it?" She says nervously, unconsciously licking her lips.

"I think you already know. Let instinct be your guide. Let your lips lead you in worship of this as they would through a prayer."

She glances up towards your darkened features, and steadies herself before dipping forward and kissing the tip of your cock. Her lips are warm and soft, and their touch sends a shiver up your spine, and a small moan escapes you. She takes this as a good sign and kisses your head again, as her delicate fingers return to your shaft more confidently, sliding up and down your length.

"Like this master?" She says. The title is definitely unusual, even for a very devoted young woman, and gives you another momentary pause. It seems she may be even more willing than you thought. Could this be a fantasy of hers? Either way, playing along is clearly your best bet.

"Yes dear, but you must demonstrate the _depth _of your devotion. Show me how fully and completely you wish for salvation."

Understanding, she moves to take your cockhead into her mouth. Her lips and mouth are dainty, and it takes a little work for her to loosen up enough to take more than just the head. She can't fit your whole shaft, and is clearly a little inexperienced.

"Have you ever worshiped like this before?" You can't help but ask, as her tongue clumsily dances around you.

She tries to speak around your cock, causing a rather wonderful vibration before she pulls back enough to articulate words. "Um... N-not with a man before." She stammers.

But she's been with a woman? Interesting.

"Use your hand on it while you're talking Marianne. Remember this is your penance."

"Sorry!" She cries out and resumes jerking your cock, a little roughly. Definitely inexperienced with dick, but enthusiastic at least.

"Who have you done this with? Are they here at the monastery?" You ask as she masturbates you, and you can see her legs shifting a little, probably rubbing back and forth around her pussy.

"Um" she blushes deeper. "Yes, but I'd rather not say, if it could get her in trouble."

"It won't get her in trouble, but you're right, this is about your penance. Your friend will have to come to the goddess themselves." Though you do have an inkling on why she might be referring two. She continues to stroke you, gentler now that she's not overthinking it. Still, the absence of her warm mouth was noticeable.

"Take it in your mouth again Marianne. Show me how devoted you are." She complies eagerly, with a mixture of lust and relief at not having to identify her lesbian lover. Her inexpert bobbing still feels fantastic.

"Open your mouth wider, and put your tongue over your teeth." You instruct. She complies quickly, getting into a rhythm of sucking your cockhead and the first couple inches of your shaft. You can feel the back of her throat when she dips forward, but her blowjob remains shallow.

"Unbutton your uniform Marianne." You grunt. "Take out your beasts for me. Show me what the goddess has gifted you." She complies, a little clumsily still bobbing her head. As she undoes the last button, her surprisingly large tits pop free, contained only by a frilly lace bra, which she quickly also pulls up to leave her tits bouncing freely you. You reach down and roughly grab a handful of flesh, eliciting a moan from her. She takes the initiative and opportunity to open her legs slightly and pull down her blue tights. She continues bobbing on your cock as one hand disappears between her legs

You stare down at the slutty young woman, happily masturbating and sucking your cock, and pull one of the little tasseled ropes on the door.