Start them off easy

"Can you think of a time your sister wronged you?" You ask, partially playing to the camera.

It comes to Carrie almost immediately. "In fifth grade, she tore up my homework one time when..."

"Because you stole my Christmas present!" Elle shouts.

"QUIET!" you shout. Both girls immediately jolt their heads toward you. A sense of power washes over your body. The stare deeply into Carrie's eyes. You watch her drop her defenses. You watch her start to melt. "Slap her." You say.

The silence continues. She's pondering your command. But the video is rolling. The moment is here. Refusal isn't an option.

So Carrie steps up to her sister and wails on her with a powerful open-handed slap right across her left cheek. {Hersister} grunts and almost falls to the ground.

Do they think this is crazy? Because you're just getting started. "Now tell her she can really make it up to you by pleasuring your asshole."

Elle just stares at you. A tear falls out of the corner of her left eye, maybe from the pain, maybe from the realization that this experience is going to be filthier than she expected.

Neither girl probably appreciates that this is you deciding to go easy on them.

But Carrie seems to be all in. Maybe it's the lingering effects of the ****, but she's up for whatever you say. Almost immediately she's down on all fours, tugging her black dress up around her hips, looking back at her sister's blank expression. "Eat." She says. Elle just looks. "EAT!" She demands.

Biting her lip, Elle gets down on her knees, shuffles up to Carrie's asshole, takes a deep breath, spreads it, spits on it, looks at the camera with a grimace that cracks into a slight smile, then buries her face.

"Holy f..." Carrie exclaims. Whatever is happening to her, it's very pleasant. "Yes. Yes. YES!" She shrieks. "More! Ohmygod Elle more!"

Elle works her tongue at her sister's asshole intently. You hear her moan a bit. But there's a sense of uncertainty hanging over the room. You wonder which one of these girls is going to break and embrace what's happening first.

Turns out, it's Carrie. "Deeper!" She says to her sister's surprise. Elle pulls back curiously. "You heard me. Shove your tongue in there!" Carrie insists.

What else can Elle do? The video is rolling. Refusal isn't an option. She buries her face back between her sister's asscrack. You can't see it happen, but you know from Carrie's expression, the exact moment her sister's tongue penetrates her asshole.

You let this go on for a couple minutes, enjoying the sights before you, enjoying the sounds of Carrie's moaning, like you've heard before, but more intense, enjoying watching both girls bodies work themselves into a sweat. You could watch this for hours. But there's so much more to do.

"Enough." you say.

Again, almost immediately, Elle pulls back obediently, panting, her breasts heaving as she yanks her blouse up off over he head, as if she's suddenly realized that deep down she's a slut, and there's no point wearing clothes. And now, topless, panting, she looks over at you again.

"Did you like the taste?" You ask. Almost shyly she nods. "Then share it." You say, your hardon feeling like it's going to burst from your pants.

Elle knows what you mean, and grabs at Carrie flipping her around. The scene is getting aggressive now; as it should be. Carrie resists for a moment. Maybe she doesn't realize that before this is over, both of them will understand what it's like to lose control.

You watch as her eyes go from shock to refusal to acceptance in a matter of seconds. You watch as Elle leans in and spreads her lips with her fingers. You watch as she shoves her tongue in between them.

And it's off to the races. The sisters paw at each other. Carrie pulls her sister's skirt down, exposing a trim little bush and a glistening twat. Elle pulls her sister's dress down, exposing sweaty breasts and hard nipples. They kiss, deeply and messily, as if there's treasure at the back of each other's throats, and it can only be found with their tongues. Watching it is almost too much to bear. You wonder if Carrie can indeed taste her asshole on her sister's tongue. You hope so.

After a while they break, panting, sweating, and help each other with the rest of their clothes... well, almost. Carrie still wears the choker necklace, Elle still the thigh-highs. But aside from that, the siblings are naked. There's almost a moment of calm, as Elle suckles on Carrie's nipples, catching her breath. If this means things are slowing down, you'll have to fix that.

Carrie looks over at you. "Do you think our president would be enjoying this?"