The apartment goes into heat—literally

Marnie curses herself and her weakness as she acquiesces to Uhazral's demand. She feels her body stiffen and watches her arms light up with the strange symbols that coat her entire body. No one else notices anything amiss, though, and indeed, nothing seems to happen at first. Her mother and Katie continue to sort through clothing, posters, DVDs, etc.

Stephen pops in to see how they are getting on. "Need any help?"

"I think we're good here. Really, you're just doing us a favour by keeping Dad out of our hair," Marnie says, brushing a strand of literal hair, damp with sweat, out of her eyes. "He'd be trying to direct everything, and we'd be moving twice as slowly."

"Cool. You sure, though? You all look wiped—maybe you could use a break."

Marnie frowns at the comment, because up until a minute ago she could have sworn she was feeling fine. Now that he mentions it, however, she does feel flushed. Her armpits are sticky with perspiration. A glance at her sister and mother confirm that their tops are moist, and sweat beads both their brows. "That's strange. Why is it so hot in here?"

Stephen wipes his own forehead. "Yeah, it has gotten kind of warm." He checks the thermostat by the front door and calls out, "It looks normal here." But investigation of the heaters reveals that they are all on full tilt. So Stephen calls down to the building manager and discovers that there's some kind of fault in the heating system—it’s gone on full blast in the middle of one of the hottest days of the spring so far.

"Great," Marnie mutters under her breath. She can already feel her clothes starting to stick to her skin. She is not a creature adapted to warm climates, and she doesn't relish continuing to unpack Katie's life while sweating buckets.

Stephen and her dad have already busied themselves opening all the windows as well as the door to the balcony. Even with this circulation, however, it's not enough to cool things down. The room continues to heat up. So Katie is the first to adopt a more practical solution: she takes her top off.

"Katie!" Their mother is the first to react with shock, of course, as she sees her daughter's tits hanging naturally, pendulous, upon being released from Katie's bra. "What are you doing?"

"It's too hot, mom. Relax—it’s nothing you guys haven’t seen before, and I’m sure Stephen will see his share of these from time to time if I live here." Katie's tone is carefree, and though it shouldn't, it sets Marnie at ease. It seems to have the same effect on her mother.

"You have a point. It is far too warm," their mom says—and she actually follows suit, shedding her rather thick top and wiggling out of her designer jeans.

Marnie has ****, really, but to emulate them. She's not ready to be so blasé about such exhibitionism, but her dad certainly has seen her nude once or twice, and of course, Stephen is well accustomed to the sight.

Soon all three women have stripped down to sweat-soaked panties—though if Marnie is being honest, something else has begun to soak hers. Katie is every bit as hot as she was a couple of nights ago—hotter, literally and figuratively, with her hair, pulled back into a loose and limp ponytail, beginning to stick to her skin, which is glistening with sweat. Their mother's curlier, strawberry blonde hair is similarly stringy in the heat. Her smaller breasts rise and fall from the recent exertion, their pink nipples standing out proudly like cherry buds.

Stephen and her father make no bones about admiring the impromptu display.

Marnie's mom says, "You know, it isn't fair that you guys get to see us stripped down. I think some quid pro quo is in order, gentlemen."

Stephen shrugs. "Far be it from me to contradict you, ma'am." And he begins to strip out of his clothes. Marnie barely pays any attention, so jaded is she by the sight. She can't help but stare at her father's freshly-revealed chest and legs, though, and the outline of a more prominent body part in his underwear.

Thus laid bare to all in the apartment, the party resumes unpacking Katie's room. The intense heat slows the work considerably, and more than once someone suggests abandoning the task and evacuating the room. But that would mean sorting out clothing, and Katie is anxious to get her room squared away. So they persevere despite the inclement conditions. If Marnie notices her dad watching her ass with interest, she says nothing.

Exhibitionism aside, things proceed normally at first. Then Marnie's mother finds a shoebox containing Katie's dildos and vibrator.

"Oh my," their mother says. Instead of doing the sensible thing and replacing the lid on the shoebox, she tips the contents of the box onto the bed. Plastic penises of various cheerful colours spill onto the bare mattress.

The colour evacuates Katie's face. "MOM! What the hell?"

"Oops. I'm so sorry, dear. Let me—" She reaches to pick up the nearest dildo, then reconsiders, as if realizing where the instrument must have been.

Katie dives onto the bed in an attempt to conceal the spectacle from the two men in the room, but she's too late. Stephen and their father have already exchanged knowing looks, as if this confirmed everything they ever suspected goes on in a woman's bedroom.

"Don't worry about it," their dad says. "It's a perfectly normal thing for a girl—woman—to do…."

Colour begins to seep back into Katie's face, and specifically into her cheeks, as she blushes redder than Marnie can ever recall seeing her go. "I … um …" At a loss for words, she simply starts cleaning up the mess. Marnie moves to help her. They accidentally reach for a vibrator at the same time, and one of them switches it on. It jerks to life in their hands, sounding almost accusatory in the current climate of the room.

"Agh!" Katie screams, dropping the device. It hits the floor and rolls, buzzing all the way, until it comes up against her father's foot. Laughing, he picks it up and switches it off. He turns the vibrator over, examining it thoughtfully. Katie extends a slender hand. "May I have that back, daddy?"

He extends the vibrator, but just as Katie's fingers close over it, he yanks it away again. "Wait. Now, I have no problem with a daughter of mine using one of these things. But I feel it's my responsibility as a father to make sure that you are using it properly. After all, if you don't know how to use it, it could be very dangerous. I think you should demonstrate it for us, Katie."

Katie's eyebrows rise. She looks to Marnie and her mother for support, but the latter only smiles. "I agree with your dad. It's for your own good health."

There would be no reprieve, then. Katie takes the vibrator from her father's outstretched hand and climbs back onto the bed. She hooks her thumbs into the waistband of her panties and slides them down her legs, tossing them to the floor. Then she holds the vibrator in one hand, switches it on, and uses the other hand to spread apart her pussy lips to ensure that her audience has a good view.

She gasps as the tip of the vibrator brushes against her sensitive labia. "Mmmm," she says, unable to keep herself from showing her obvious pleasure. In seconds she has surrendered to it, deciding to ignore the four other people in the room and instead focus solely on stimulating her pussy with the small plastic rod. She moves it around her pussy and then works inward, angling the vibrator up until it just hits the spot below her clit, sending waves of pleasure coursing upwards through her body.

Marnie feels herself getting wet in sympathetic response. She isn't the only one. Marnie's mother soon joins her daughter on the bed. She takes Katie's chin in her hand and pulls her close for a passionate kiss. Then she deftly frees Katie's hair from the scrunchie, letting it hang loosely around her neck. The two continue to kiss while Katie works her pussy with the vibrator.

Transfixed by the sight of the two women on the bed, Marnie doesn't notice Stephen coming up behind her. Suddenly he's there, his scent heightened by his sweating body, which is now pressed against her own bare curves. Gently, he turns her away from the bed and meets her gaze. They don't say anything, but she gets down on her knees. With a tug she frees his erect cock from his boxers and takes it in her mouth.

It tastes so good, so slick and sweaty and warm. She feels dirty, sucking Stephen's cock in front of her family, and that turns her on even more. His hand grasps the top of her head and encourages her to take more and more of his length down her throat. She gags, sputtering, and his cock slips out of her mouth. She runs her lips along its side, kissing the length of the member and burying her face in the scent of his balls.

Another hand joins Stephen's atop her head and angles it upwards. Marnie finds herself looking at a second cock, every bit as big and hard as her boyfriend's, its glans purple and already dripping with pre-cum. Her father has been watching them, stroking himself, and now he can't stand just watching. "Suck me off, my little slut," he says.

"Mmm, you bet, daddy," Marnie finds herself saying. And she does just that, trading the two men's dicks in and out of her mouth like an experienced cocksucker. She's never actually done this before—given a blowjob to two men at once—and she reflects on how the unique tastes of their penises merge in her mouth. On her knees, wearing nothing but a pair of sweat-soaked panties, looking up into the hungry eyes of the two men who mean the most to her, Marnie revels in the sensation of being totally submissive, of servicing them like an obedient whore. Her pussy is virtually on fire now, and she uses her free hand to start rubbing herself through the fabric of her underwear.

"I think our slut is in need of something more thorough," Stephen says. Marnie's father grunts assent.

So the two of them pick Marnie up. One of them pulls off her panties, and then they deposit her on the already-crowded bed. Stephen joins her, positioning himself above her mouth so that he can throat-fuck her, while her father wastes no time in thrusting his big cock into her ready cunt. Neither of them pays attention to the muffled groans—passion? protest?—that emanate from Marnie's cock-filled mouth. They simply grip her shoulders and her hips and use her as a mindless fucktoy. Marnie is vaguely aware of her mother and Katie next to them on the bed, but beyond that all she can do is look up at the balls slapping into her nose and surrender herself to the exquisiteness of daddy's cock. It's not surprising that she soon orgasms, each wave of pleasure further eroding any linger inhibitions or any thought that this could be wrong, demonic cause notwithstanding.

Stephen ejaculates all over her face and chest, and Marnie happily swallows part of his load and wipes his cum from her eyes, sucking on her fingers. "Fuck that tastes good, baby."

Before he can reply, Marnie's mother grabs him and pulls him away. "How about you show me what a young stud's cock feels like, hmm?" Stephen doesn't protest. Marnie tilts her head and watches as her boyfriend positions her mom on all fours and then proceeds to mount her. Marnie is surprised to see that her mother has a trimmed but hairy snatch. Stephen doesn't seem to notice, or if he notices, doesn't care. He simply pounds her from behind, his cock splitting her thick labia like a knife through butter.

Thus abandoned, Katie tries to get in on Marnie's action. "I want some of daddy's cock too, Marn! Don't you dare hog his cum all to yourself!"

"Now, now, Katie. Play nicely with your sister. There is plenty of me to go around." Their father pulls out of Marnie's cunt as he says this. He climbs onto the bed and lies down, and the two sisters know what to do. They take turns sucking his cock and kissing each other, Katie licking some of the remnants of Stephen's sperm from Marnie's face.

When they tire of this, Marnie helps guide their father's cock into Katie's tight fuckhole. The 18-year-old straddles her father and rides him with the eagerness of a young bitch in heat. By this time the apartment is sweltering, so the term has new meaning. All of them have gone beyond soaked to drenched or even, perhaps, drowned with sweat. It's getting into their eyes, making it hard to see. The women's hair cleaves to their bodies in tight, constricted waves. The scents of sex are enhanced and seem to linger in the air even as bodies move and change positions and partners.

Marnie loses track of time. It had just gone noon when they had started unpacking. The sun is much lower in the sky now, but otherwise she has no idea how long they have been fucking like this. Stephen and her dad each take a turn in her pussy again, and she makes out with both Katie and her mom on separate occasions. Eventually the orgy declines into cuddling and petting as they lie in an undifferentiated heap of sweat, skin, and sex on the now-ruined mattress. As the day marches on towards dusk, they nap and catch their breath.

There's no sign of life from the amulet, no gloating from Uhazral. Marnie didn't expect any. She suspects that what they have done here has considerably advanced the demon's agenda, provided it with a ready supply of psychic energy on which it can gorge itself.

Marnie doesn't care. She loved every moment of it. She loves that it has brought her family closer together. And she knows that this is the first but definitely not the last time.