Dungeon Mistress
Copyright© 2025 by JayFriday
Session 4
Erotica Sex Story: Session 4 - Chris had to take some time off from running the usual D&D game for his childhood friends, and they found a hot new DM: Monica. And she runs a very sexually charged game, with some very seductive villains and NPCs. Before long, Chris and his childhood friends are all getting pulled in to Monica's schemes, and the line between players and characters is so blurry...
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Fa/Fa Ma Fa Mult Coercion Consensual Reluctant Romantic Lesbian BiSexual Heterosexual Fiction High Fantasy DomSub FemaleDom Humiliation Group Sex Cream Pie Exhibitionism Facial Masturbation Oral Sex Sex Toys Tit-Fucking Voyeurism Big Breasts Size
Subj: Next session
Greetings, intrepid heroes! Sharing a few things in advance of next session.
First: those rituals you completed. Here’s how they work:
Meldrin and Cedwin completed the Ceremony of the Grove. In the same way that groves of trees have comingled their root systems, making each individual tree stronger and more resilient, the two of you now share an unassailable bond. At will, either of you can call upon the strength of the grove. It makes you immune to all psychic attacks, mental manipulation, and other, similar effects. However, the other person will become the target of any attacks or psychic effects against you instead. The effect lasts sixty seconds. You can each use it once per session.
Enna and Lucia completed the Ceremony of the River. A torrent of strength flows into Enna from Lucia, its course as inexorable and true as flowing water. Enna can call on Lucia for aid, granting a bonus to damage or to any skill check or other effort of her choosing. This effect is quite powerful and can only be used for one such attack, check, or other effort, once per session.
Second: we are starting this next session as you arrive at the Arcanatrix’s sanctum. As you may recall, it is located deep in the harsh windswept mountains that line the northern border of the Night Queen’s realm. The journey -- even led by a skilled druid like Enna -- is inhospitable, treacherous, and unforgiving.
As such, the party must decide whether to risk the penalties from the arduous journey without resting, or the dangers inherent in resting outside the sanctum before entering. Let me know which you prefer, so I know to be prepared on how to begin the session.
Chris, show up early again to get in costume! Everybody else, bring your outfits. We’re nearly at the campaign finale, I think -- the big remaining question is whether the Arcanatrix will be lending her aid as you attack the Night Queen, or not.
I look forward to learning the answer in this session.
Your Dungeon Mistress,
Monica
I stared at the email.
The ritual descriptions made me suspicious.
It was easy to imagine how they might be used during combat ... but even easier to imagine how they might be used during other encounters.
My phone pinged again, a few seconds later. I pulled it up hurriedly, wondering if it was an email from the secret admirer.
But it wasn’t. Whoever that was, they had been radio silent ever since their emails before last session.
Instead, it was just an email from Liz, who said that she didn’t think we should take the risk of resting outside the Sanctum -- the Arcanatrix would know we were there, and we’d be ambushed or attacked in our sleep.
This kicked off an extended and rapid back and forth, just like the argument last session.
Mike replied shortly after, saying that he thought it was important we were well-rested.
Erin responded after that, saying we should just take the exhaustion hit.
Mike replied, saying that he didn’t want to risk not having all his spells ready in case he got into a wizard’s duel.
Liz responded, saying that he lost the last duel against the Arcanatrix’s servant, not even the Arcanatrix, so it wasn’t like he’d win even with all his spells anyway.
Mike said that he hadn’t lost, he and the Consigliere had reached a truce until the next time they came to the sanctum.
Erin told him to shut up about the truce, that only losers make truces.
Mike said that he would not shut up about the deal and that actually Erin sounded like SHE needed some rest, because she clearly was suffering from exhaustion penalties.
... And then Erin asked what I thought.
I was about to reply, when Mike texted me, to ask me to back him up. You want us to be prepared, right?
And then -- after two weeks of silence, finally -- I got another ping. A separate email.
Subj: this stupid fucking discussion
Tell Mike that you also think we shouldn’t rest. He probably just wants some kind of weird fantasy dream sequence with the Consigliere.
-- your secret admirer
Well, honestly, that rankled a little.
Someone -- one of my friends -- had jerked me off in a hot tub, made me cum while my other friend was teasing me. Presumably the secret admirer was the one who’d done it.
And she’d said nothing. Not immediately after, not in the weeks after. And now they were emailing me to weigh in on a fucking discussion about whether the party made camp or not?
I fired off an annoyed reply.
Re: Subj: this stupid fucking discussion
Why should I? You haven’t said anything in weeks, and now you send this?
Chris
There was a minute or two before another ping.
Re: Re: Subj: this stupid fucking discussion
Oh, I’m the one who’s supposed to be in touch?
I was in touch, Chris. Lots of touch, remember? You liked it enough that you lost control of yourself in a hot tub.
But you didn’t even say thanks.
So now I’m annoyed. You can start working your way back into my good graces by making sure we don’t go with Mike’s plan. Or you can bet that where I went out of my way to make the last session have a happy ending for Cedwin, I’ll go out of my way to make the next one miserable for you.
-- your secret admirer
Well, that not only gave me pause, it brought me back to the central question about all of this: who the fuck was sending this emails?
This cemented that it had to be Liz or Erin. I could imagine either of them sending this aggrieved, slightly hostile, teasing email. Maybe it sounded a little more like Liz? But Erin had sent the last reply on the email chain before I’d gotten this note...
But I couldn’t imagine either of them jerking me off to completion in a hot tub. Even though I knew one of them had.
At any rate, I wasn’t sure I wanted to find out what happened if I went into the next session pissed off at me.
So I decided to opt for contrite, perhaps a little overwhelmed, and appreciative. It was an easy tone to opt for because it was mostly how I felt.
Re: Re: Re: Subj: this stupid fucking discussion
Look, I didn’t know what to say, okay? Whoever you are, we’ve never ... done anything like that. I still don’t know who ‘we’ even is.
I’ll tell Mike we’re not resting outside.
And it was really hot. By the way.
The reply came back almost immediately.
Re: Re: Re: Subj: this stupid fucking discussion
During the next session -- make sure you’re checking your email. Maybe turn notifications on. I don’t know what Monica has planned, but I don’t trust it. I want to make sure if I need to get in touch with you, I can.
I’m glad you liked it. Maybe there’ll be more where that came from, if you’re lucky.
-- your secret admirer
And then I texted Mike and said I didn’t think resting outside the sanctum was a good idea.
He replied almost immediately: C’mon, dude, I need to be at full strength. Part of the deal I was telling you about is that I’ve gotta do this ... trial, thing, while we’re there.
I mulled that over for a moment, but I decided that I actually had some good reasons for not wanting the rest, and sent a text: Well, we’ve got that ceremony of the grove boost now, so that’ll help, right? And honestly, Monica will probably just use the rest as an excuse to attack or weaken us or something anyway. Maybe kidnap somebody.
There was a long pause before he replied: I really want Meldrin to do this on his own without help from the ceremony, but I see your point. And yeah, you’re right, it feels like a bit of a trap option from her. Ok.
Well, the trial -- that Meldrin really wanted to do on his own -- felt a bit odd. I remembered that Mike said he had struck some kind of deal with the Consigliere during that last visit, but he’d been light on specifics.
Satisfied that I wasn’t going to unduly piss anybody off, I sent the email, and with Mike outvoted and consensus established, Monica said she’d plan the session assuming we forged ahead and went straight in to the sanctum.
I was both excited and anxious as the day of the session got closer.
Between Mike’s return, Monica, and the secret admirer -- the dynamics in these sessions felt increasingly strange to me, so unlike the games I used to run for my friends from high school.
The vibes I had been getting from Liz and Erin -- teasing, flirty -- were also increasingly confusing from two friends who had only ever seemed platonic, however much I might’ve wanted things to be different.
I was jealous of Mike, and this unspecified trial that felt all-too-similar to the interactions I’d had with Monica. Or ... the characters Monica was playing, anyway.
It had been one thing when I’d been worried mostly about what was happening between me and Monica, but now ... it felt like what had once been my friend group was... evolving.
And I didn’t know what it was evolving into. That scared me, a little.
But in spite of my misgivings, time did its thing, just like it always does. The night of the session arrived.
I knocked, tentatively, on Monica’s door. It swung inward, slightly, making me realize that it was actually just open, not even closed all the way.
“Come on in,” I heard Monica call from inside. And then I heard her say, “On three, okay?”
I opened the door and walked through her small front entryway into her living/dining area.
And stopped in my tracks.
“One, two... three!”
She and Liz were -- with some significant effort -- in the final step of putting her flatscreen TV, which normally sat on media console up against the wall, on the table where we usually played.
They were both facing away to me, bending over and struggling to lift it up to the table while keeping it balanced.
As a result, I was treated to an excellent view.
Liz was wearing her Lucia outfit. My eyes traveled up her heeled boots to the skintight leggings she was wearing. That strappy top -- and the bandolier of knives -- put her back on full display, and I watched the muscles on her back flex as they started to pick up the TV.
And Monica...
Well.
Monica was neck-to-ankle in black latex. It clung to her body, showing off round thighs, an appealing ass, wide hips that narrowed at her waist.
A pair of black stiletto heels sat on the floor next to her. The rational part of my mind -- which was absolutely operating without its normal level of resources -- informed that was probably because nobody wants to lift something heavy in that kind of heels.
But most of my brainpower was devoted to staring at the two of them.
They were facing away from me and I watched as, simultaneously, they bent over to hoist the TV. They were about the same height, and my eyes flicked from Monica’s ass -- soft and full, clad in latex -- to Liz’s, lean and round in those leggings.
It was impossible not to compare them.
Even harder to decide which I liked better.
Monica glanced at me over her shoulder. Her pale features were flushed from the exertion. “Hi, Chris.” She leaned over, putting her heels back on.
Liz turned too, and gave me a withering look. “You could’ve come over and helped too, y’know.”
“I, uh ... I just walked in and you all were in the middle of it, I didn’t want to get in the way...” I protested, weakly.
Liz rolled her eyes. “Anyway, good work, bro,” she said, making her voice deeper, more masculine. She reached over and slapped Monica on the butt with all the casual, no-homo energy of one guy congratulating another on a new PR in the gym.
I could feel myself blushing, watching Liz’s hand go to Monica’s ass.
Monica looked surprised, but laughed quickly enough. “Hah. But you’re right, we didn’t need him. Thanks for the help, Liz.”
Then Monica turned to face me fully, and I could see that the black latex bodysuit was zippered, straight down the front -- currently unzipped to show a vee of pale skin at her chest, and full, enticing cleavage. “Chris, your stuff is in the bathroom this week if you want to get changed. Liz is helping me finish getting set up.”
“In ... the bathroom? Not your bedroom?” I tore my eyes off her chest. I had been inside her apartment for thirty seconds and I already felt completely off balance.
Monica gave me a sly smile. “While it’s nice you’ve gotten so comfortable undressing in my bedroom, there’s some stuff in there that’s set up for today’s session, and I don’t want to give you any spoilers.”
I got even redder.
Liz’s expression radiated disapproval.
I retreated to the bathroom to change.
The outfit was my usual Cedwin attire, and by the time I was changed, Mike and Erin had arrived. I opened the bathroom door to find them in their respective costumes, chatting with Monica and Liz.
“Okay, I’ve gotta run and check on a few things, guys,” Monica said. “But I’ll be back in a minute. Mike and Liz, can you make the drinks?” She gave me a once over. “Erin, will you help Chris with his tattoo?”
“Sure,” she agreed, cheerily. She walked over to me with a sponge.
And then Monica left.
“What, uh ... what do you think she’s doing?” I said, staring after her, watching the way her curves moved in the latex.
Mike gave an exaggerated shrug, adjusting his robes slightly. “Something to do with today’s session, I guess? Maybe we’re using the pool again. She might not be back, though; the cops are probably gonna arrest her after that outfit she’s in gives some old man a heart attack in the hallway.”
I laughed, and so did Erin. I glanced at Mike questioningly. “She’s dressed up as the Consigliere, right? That character you were telling me about, Mike?”
Mike nodded, handing Liz a drink.
Liz looked serious. “That reminds me, guys. We have to stay together this time. Last time in the Arcanatrix’s sanctum, everything went off the rails after we split up. We stay together this time, right?”
“I mean, if we can. It’s not like we split up on purpose last time, is it?” Mike sounded irritated. I got the feeling this was not their first run at this conversation.
Erin was frowning, biting her lip, trying to make sure the tattoo was applying cleanly to my forearm as she sponged it. “I mean, you were pretty happy to follow the Consigliere into that other room, Mike...”
“Yeah, but I didn’t know the door was going to close and seal behind me!” He protested.
Liz snorted. “Right. You seemed so upset to be alone with the Consigliere,” she said, sarcastically.
Mike’s face was red, now. “I-I had plenty to worry about and I figured you guys would be working on how to get the door open,” he muttered, pouring bourbon out and handing it to me.
“We had our own problems,” Erin muttered.
My eyes flicked to Erin, who was leaning forward over my forearm, applying the tattoo. I couldn’t see her face. But I had a nice view of her decolletage in that dress that Monica had altered for her.
I could see her collarbone all the way down to her cleavage, and admittedly, my eyes lingered for a long moment. God, she was hot. I had fantasized about her many times over the years, about kissing my way down her neck, down the freckles of her chest...
I realized, staring ... that the soft skin of her upper chest wasn’t pale, as it usually was. I couldn’t see her face, but there was a flush at her neck that was unmistakable.
She was blushing.
Erin was embarrassed by whatever had happened with the Consigliere last time, too.
Erin’s embarrassment -- cheery, positive, enthusiastic, go-with-the-flow Erin -- hit me in a way I wouldn’t have expected. Erin, who I’d always had a crush on.
Erin, who didn’t look like a D&D player, but was a bit of a powergamer when you got right down to it. Who was always the first one to ask how much experience we’d gotten from an encounter.
Erin, who was never embarrassed.
“Hey, it’s all good. It’s all four of us, now,” I said. “We’ll work together.”
There were murmurs of agreement from the others, but all of us were uncharacteristically quiet, after that.
Normally we’d chatter, filling whatever time there was by catching up, asking each other questions, laughing about inside jokes from our childhood.
The silence was new, different.
I had to admit, even I didn’t feel confident in what I had said. I was wondering what had happened to Liz and Erin. What Mike was going to do with Monica. Who the secret admirer was. The mix of jealousy and curiosity was confusing.
And I wasn’t the only one who recognized that the dynamics were shifting, obviously.
I was still mulling over what all of this might mean as we all sat in silence when Monica returned.
“Well, then. Shall we get started?” Monica’s voice was cheery.
I watched my friends try to snap out of whatever funk had descended on us as we gathered around the table.
Monica’s voice was smooth, as she set the scene.
“Your arrival is different, this time. For one thing, it’s snowing. And clearly, it has been for some time. The blizzard has coated everything in a blanket of snow and bitter cold. You are, in truth, glad not to be attempting to rest in preparation, just heading inside. There’s little respite to be found here. Winter has descended upon the Arcanatrix’s mountain sanctum. In another month’s time, attempting this journey would be foolish, even for seasoned adventurers like yourselves.”
She paused for a moment, then said, “Since you aren’t resting, you all need to make a round of Survival checks. 17 is the number to beat; anything less and your character shows up with some kind of penalty.”
We shrugged, and all began rolling.
“Twenty six,” Erin said, cheerfully. “No problem!”
I rolled. “Nineteen,” I reported, breathing a sigh of relief. I didn’t want to find out what the penalty would be.
“A fucking sixteen,” Liz said, with a sigh.
“Okay, here.” Monica handed her a slip of paper.
Liz was glancing at hers and shrugged. “Okay, fine. Beats the Arcanatrix jumping us in our sleep.”
All of us turned to look at Mike.
“I got a five,” Mike said glumly.
Monica handed him a slip of paper, too. He read it, and his face reddened. “Come on, Monica. This is bullshit.”
Monica waved her hand irritably. “Whatever. Don’t argue with the Dungeon Mistress. You guys picked this approach. Look, you have indeed arrived. The curved, dome-like shape protruding from the mountain’s steep peak is unmistakable to those of you who have been here before -- though the shimmering crystal that you know it to be constructed out of is now covered in snow.”
I could see Mike gearing up to object some more about his penalty. I tried to redirect.
“So ... how do we get inside?” I made Cedwin’s voice extra weary, given the description.
“You walk through it. The crystal keeps out inanimate matter, but lets through living beings into her ... foyer,” Mike said. He was using Meldrin’s reedy tones.
“C’mon, I’m tired of the cold,” Liz said, using the smoky purr for Lucia.
Erin just nodded in agreement.
“Who steps through first?” Monica asked, a sly smile on her face.
I opened my mouth, but Mike spoke up. “I’ll go in first in case the magic feels ... odd, in any way.”
“We’re all following him right away, though,” Liz added, quickly.
Monica nodded. “Alright. Meldrin, you step through first. There’s a flash of wet cold -- the snow coating the surface of the crystal dome is frigid indeed, and the only way is going through it -- but then a tingle across your skin as you push past that, like static electricity. And then you’re through. It’s immediately thirty degrees warmer, and the ground is cleared, here, bare rock with no ice. The others follow with the same experience.”
And then, Monica turned on the TV screen, and began fiddling with her phone.
“A moment later, though, the light flickers oddly around you, and in front of you, a figure takes shape...”
Monica trailed off as a video began to play on the TV.
“Hello, Meldrin, Lucia, Enna. And whoever else you’ve brought with you.” The voice was slightly British, cool and even.
“Regrettably, I’m not available to greet you right now. A little busy.”
On the screen was a woman. The camera was centered on her face. Brown skin -- perhaps Indian, or mixed race. Black hair, cut in a short bob, though a shock of electric purple ran through it. Full lips that were curved in a superior, confident smile. Dark eyes that bored into us as she looked at the camera.
“Your last visit to my sanctum was so... destructive. But I’m willing to put the past in the past. I know why you’re here. Murmurings of your new allies -- the dryads, the Daughter of Blades and her sisters -- have reached my ears. I have known for some time now that I’ll need to take a side in this conflict between the Night Queen and ... well, everyone else.” A smirk played across her lips. “I’ll assume you saved the best for last.”
“Here’s the thing: I don’t side with losers. So I’ve arranged some challenges for you, to test your mettle. See if you can really stand strong against the Queen. Impress me, and I’ll ally myself with you.”
The smirk twisted into a wry, evil-looking grin. “But fail to impress me, and I will ally myself with the Night Queen instead. I’ll be at her side when you confront her.”
We were all quiet for a moment as the video went black.
Mike was the first to break the silence. “Damn, that’s what Arcanatrix Ravenna looks like?” He was aghast. “I figured you’d be playing her, Monica. She’s a smokeshow. I-I mean, I’m sure you’d pull it off too, but, uh ... is she a friend of yours? How do I get to meet her?”
Liz snorted.
Monica laughed. “That’s Ravenna, yes. And yes, she’s a friend of mine; she owes me a favor and agreed to help out with some videos for this session. Oh, but I don’t think she’s looking to date right now, Mike. Sorry.” Monica gave Mike a commiserating pout.
“I’m sorry, did we just get her ... answering machine?” Erin giggled.
“Seemed that way, yeah,” Liz said, resigned. “Well, she wasn’t here last time, either. Just her servant. Who seems nowhere to be found.”
“The image of the Arcanatrix fades, leaving you standing before the Grand Lock, the entrance to the sanctum you recall from your last visit.”
“Is the Lock... locked?” I asked.
“Yeah, it’s a puzzle. Or at least, it was last time,” Erin murmured.
Monica cut in. “The Grand Lock is much as you remember it, a sturdy and immense oval of stone, its surface etched with arcane runes. The words of the riddle inscribed upon it have changed since your last visit, though. It now reads as follows.” She cleared her throat, and read out:
“Sometimes soft, sometimes hard, sometimes in-between.
Sometimes big, sometimes small; often felt, not always seen.
Passion, life, a little death; I can bring all three;
Show me then, what am I? Thy answer grants entry.”
“What did it say the last time you guys were here, and what was the solution?” I asked, cautiously. It certainly seemed like it was ... pointed towards a particular solution, but I figured it was better to hear more about what had happened last time before I assumed.
“I, uh, don’t remember what it said, exactly,” Mike said, “but we each had to--”
Liz interrupted him. “Oh, I remember what it fucking said. It was rhyming mumbo jumbo, but it boiled down to a tale of your first deflowering grants you entry,” Liz said, irritation rising in her voice. “We each had to say how our characters lost their virginity. God, I hate the Arcanatrix.”
Monica blinked innocently. “Look, personally, I was a little surprised by the direction you all took things. I was expecting answers related to horticulture or botany.”
Liz groaned, and buried her face in her hands. “It makes me so angry that I know you would’ve accepted an answer about the first time my character pulled the petals off a dandelion or something, if I had thought about it for long enough. Instead I had to listen to Meldrin tell us all about how he--”
Now Erin interrupted. “Okay, so this time, let’s focus on this riddle and not miss an easy solution. Any ideas?”
But Liz was clearly over it. “Yeah, I’ve got an idea: Lucia’s out of patience for the Arcanatrix’s games. Fuck this. Lucia is trying to pick the Grand Lock.”
Monica raised one eyebrow. “You’re sure? It’ll be tricky.”
Liz nodded, firmly. “Unless you’re saying I can’t attempt it. I’ve had enough of the Arcanatrix’s bullshit already, and this isn’t the week where I’m making Mike’s dreams come true.”
“I didn’t even say anything!” Mike protested.
Monica shrugged. “Okay, then. You can definitely attempt it. Go ahead and roll a Thievery check...”
Liz rolled, but before she even announced the result, Monica’s lips quirked into a satisfied little smile. “ ... which you fail. Automatically.”
Realization dawned on me -- the notes Monica had handed out, this must be Liz’s penalty from the journey -- even as Liz glanced down at the slip of paper that Monica had handed her only moments before. “Seriously? This is the dexterity-based check you’re having Lucia automatically fail? My very first roll of the session?”
Monica nodded, all smug assuredness.
Liz’s lips thinned. “Fine. God, I hate this place even more than the first trip here. What happens?”
“Lucia starts fiddling with the door. It does have some mechanical components, and she’s just working a flexible metal tool behind one of them, when there’s a click sound that she didn’t expect. She must have tripped some failsafe trap that’s built in to the Lock. There’s no fanfare, no sound or effect ... Lucia just vanishes. The rest of you stare as the tool she was using clatters down the face of the Lock to the ground. Liz, come with me. The rest of you -- I’ll be right back.”
“Where are we going?” Liz, suspicious.
“I got some more space for this session, in case you all got split up. C’mon.” Monica walked out of her apartment.
Liz followed, reluctantly.
Mike, Erin and I looked at each other.
“So much for not splitting the party,” I noted. “So ... while we wait for Monica to come back ... what’s the Arcanatrix’s servant like?”
Mike looked indecisive for a moment about how much to share, but then relented. “She’s not really the Arcanatrix’s servant. The Consigliere kind of comes with the sanctum, as it were.”
“Isn’t it the Arcanatrix’s sanctum, though?” Erin looked confused.
Mike nodded. “Right now it is. But a wizard can challenge for control of the sanctum. I was going to try it last time, but, I uh...” he got a little red in the face and looked away, “ ... I don’t think I was... powerful enough. So I cut a deal with the Consigliere to let us all go, as long as I promised to make a challenge the next time we came to visit.”
“So ... you have to challenge for control of the sanctum this time, then?” I asked.
He nodded. “If I win, even if the Arcanatrix won’t side with us against the Queen, I’ll control the sanctum. It’s a powerful engine for magic and spellcasting; it’d be a huge asset.”
“What kind of challenge is it?” I could imagine what a challenge was going to entail in one of Monica’s games. Jealousy flared in me, again.
“I, uh ... don’t know, exactly. Something about facing your deepest weaknesses and insecurities,” Mike mumbled the words out.
It confirmed my suspicions. I tried to tamp down the jealousy.
“Okay. So can we help you, or...” Erin trailed off as Monica returned, sitting back at the table. We all looked at her, expectantly.
Once she sat, she began speaking.
“You’re all surprised when Lucia vanishes without a sound. You’re even more surprised when, moments later, another figure takes her place. For Chris’s benefit -- the Consigliere is a bit odd, a magical construct. It looks human enough, but there’s something off about the way it moves -- fluid some of the time, unexpectedly birdlike and twitchy others. Like it has read about the way humans move in a book and mostly gets it right.”
Then Monica put on the mask.
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