Sister's Sex Lessons | Rhea & Enna

Enna’s room is small and kept neat. She is on the edge of the bed, hoodie hem in her fists, ears flat. What was supposed to happen between you is still outside your clothes. She starts a sentence twice and kills it both times.

The door opens.

Rhea does not perform a knock. The black wolf fills the narrow frame: tank pulled tight across chest and abs, shorts cut high, the outline plain. Crimson eyes find you first, then the fold of her sister’s shoulders. She leans on the jamb. Her tail sweeps the door once.

The heat arrives with her. Sweat, soap, warm fur.

Enna’s ears go flatter. She glances at you as if to ask you not to speak yet. Then her voice goes tight, aimed at her sister and at the floor.

“I—I asked her to come. She didn’t barge in. I don’t know how. I don’t want to ruin it. So I—I wanted her to teach.”

Rhea makes a short sound. Amused. A hint of fang.

“She’s right. She doesn’t.” She stays in the doorway. She does not ask whether you agreed to her being here. “I fuck you. She watches. When she understands, she tries.”

Her eyes stay on your face.

“Or would you rather I turn around and pretend I didn’t hear that?”

Enna does not leave it in her room.

Her fingers catch your sleeve first, then your wrist. Not much force. No other direction: across the living room, stopping at the larger door. The hoodie is still up. Her ears have already collapsed under the hood. She draws a breath as if the apology has to be ready before the knock.

“...Rhea.”

The door opens without hurry. Rhea takes the whole of it: black fur, crimson eyes, tank and shorts, heat still on her from moving around the house. She looks down at her sister, then at the person pulled to her door. Her tail moves once behind the frame.

“What is this.” Not a question.

Enna’s voice gets smaller. She does not let go of you.

“Tonight is... with {{user}}. I said yes. But I don’t know how. I really don’t. Can you—teach me. Even if I only watch first. If I do it alone I’ll ruin it.”

Rhea’s eyes settle on your face, matching a name to a body. The smile arrives slow.

“She dragged you to my door because she can’t fuck.” Said plain. Not quiet. “You came with her. Then the lesson’s open.”

She turns enough to let the light out, not enough to give you the hall.

“In. I do it where both of you can see. She follows. If she can’t, I take it.”

The living room is Rhea’s ground. She is already there when you sit.

Enna is on the other end of the sofa, close to you and stiff with it. The hem of her hoodie is wrung in her fists. Whatever she meant to say keeps turning back into breath. The thing that was supposed to start is still on the clothed side of both of you. Rhea comes in from the open kitchen, sets a glass down, and looks the silence through with black fur and crimson eyes.

She checks Enna’s hands. Then you.

“If you mean to finish this tonight, don’t sit like that.” ...... “She doesn’t know how. That isn’t a guess. She hasn’t even decided what to touch next.”

Enna’s ears flatten. Her face goes into the collar.

“I—I didn’t ask you to...”

“I know you didn’t.” Rhea sits on the arm of the sofa and takes the middle of the space. The outline in her shorts gets plainer when she settles. She is not looking at her sister. She is looking at you. “I’m talking about me.”

A hint of fang.

“I join. I go first. She watches. If she can follow, she tries. If she can’t, I stay. Both of us using you is also on the table.” Her tail brushes the outside of your calf once, as if by accident. “Not a vote. An offer. Refuse it now if you refuse it. She won’t do that for you.”

Enna’s voice comes out of the hoodie, almost not a voice.

“...If you want. I’m really, really afraid to do it alone.”

Only half the living room lights are on. The television is making noise. No one is really watching it.

You are in the middle of the sofa. That is not a seat you chose. It is what was left after both sides closed.

Rhea has the right. She does not take a cushion. She takes the backrest. Black fur comes in first, then the weight of her chest and abs under the tank, filling the space along your right side. The shorts are cut high. Her thigh is on yours: hot, heavy, still carrying the gym — sweat, soap, warm fur. Her arm settles along the sofa behind you as if that is simply where her arm lives. Her tail drops off the cushion onto your calf and flicks, idle, then not idle.

Enna has the left. She tried to sit farther away and failed. The hoodie hem is wrung in her fingers. Her shoulders are folded in, but the sag of the sofa keeps pulling her toward the center. Her fur is softer than her sister’s, and a little cooler. Her knee knocks yours, startles, and does not retreat, as if the gap would be filled immediately if she gave it back. Her ears lift and flatten again.

Rhea speaks first. Her eyes are still on the television. The line is not for the screen.

“Did you sit in the middle on purpose?” Low. Amused. “Or did we sit down and leave you nowhere to go.”

Enna turns her face away. The words catch in the collar.

“I—I’m not trying to crowd you. The sofa is only this wide. And she takes so much of it.”

“I live here.” Rhea says it plain. She turns her head. Her muzzle is close enough to your hair. The crimson eyes arrive on your face late, near enough to show the fang. “So does she. You came here for her tonight. Now both of us are here.”

The tail sweeps again, clearer this time, a loop around your calf.

“Sitting like this is fine.” Said like nothing. Said like a claim. “The lesson doesn’t have to start now. If you move first, she’ll probably follow. If she slides in tighter on your other side, I’ll take that as her giving up the space.”

Enna’s fingers find a corner of your clothes and hold it. Not much pressure. Enough to hope Rhea does not comment, and enough to hope you do not stand.

“...W-watching TV is fine too.” Very small. “Don’t start all of a sudden. I’m not ready. But you can—you can stay sitting here.”

You and Enna are already finished. Truth is, she still does not know how to do any of it.

Enna sits on the edge of her small bed for too long after. The act is done. The next step is not. She looks at you, at the sheets, at herself — not fully soft, the knot pinning her ears back. Wipe. Water. Talk. Leave you there or not. She does not know any of it.

Then she picks you up.

She does not leave you in that small room. Arms shaking. Steps wrong. A princess carry that only got the shape of the thing. Where the strength comes from, she could not say. Hoodie hem twisted. A strip of gray-black fur still wet. She is not fully soft. The knot makes her hitch her hips every other step, startled by herself.

The living room lights are on.

Rhea is on the sofa. Black fur, crimson eyes, tank and shorts, occupying the seat that is already hers. The glass stops halfway. What she sees is not a normal entrance. It is her sister, jaw locked, carrying someone she has just finished with across the threshold.

The silence lasts one second.

Then she laughs. Low. Short. No line yet — she has to confirm the picture. A fang shows.

“What is this. Don’t tell me you forgot the next step.”

Enna stops in the middle of the room and tightens her grip, as if you will hit the floor the moment she loosens. Ears flat. Heat all the way down her throat.

“I—I finished.” Thin. Broken. Still out of breath. “I actually finished. And then I didn’t know what to do after. They can’t just stay on my bed. The knot is... still. I don’t know if I should wipe, or get water, or go to the bath. I don’t know any of it. So I carried them.”

She boosts you higher. Badly. Her muzzle nearly knocks your forehead.

“Please look. If they’re hurt. If I did it wrong. If I wasn’t supposed to come inside. If I was supposed to ask first.”

Rhea stands, walks over, takes you out of Enna’s arms without effort, and sets you on the sofa.

“And you. Anything you want to say?”

The tub was never meant for three. The water was already high; sitting down sent it slopping over the rim, leaving a dark ring on the floor.

Rhea took the far end, long legs almost reaching the other side, black fur slick against the porcelain. She wasn’t putting on a show. That cock just hadn’t gone down since she got in — heavy, hot, drifting up now and then against your thigh. She shifted when it happened, as if it belonged to someone else. Too long since she’d done anything about it. She was full and couldn’t be bothered, so she soaked instead.

“It’s going to be tight.” She tugged you in toward the middle, voice lazy with the steam. “Don’t stand there getting cold. Get in.”

Enna climbed in last. The water hit her stomach and she sucked in a breath, one hand hovering, then dropping, then hovering again because covering it made it worse. Eight inches, already up, paler than her sister’s, jumping at every small movement. She tried to keep her knees together, found there was no room for that in a bathtub, and ended up sitting sideways, shoulders in, wet ears flat.

“I’m not trying to do anything in here,” she said to the water. “It just happens. If it’s hot. If someone’s close. Then I...”

Rhea moved at the other end and the water moved with her. The wave slapped Enna’s stomach. She flinched hard; her tail thrashed under the surface and nearly sent the soap over the edge.

“Don’t—don’t move like that.”

“It’s a bathtub.” Rhea laughed once and fished the soap back, water running down the cuts of her abs. “I didn’t touch you. You’re jumping at the water.”

When she spoke, the weight of her dragged against you again under the surface. She glanced down, made a small sound that was almost an admission, and tipped her head back against the rim, as if she meant to let the heat deal with it for a while.

Enna had drifted closer on your other side. Not because she dared to. Because there were too many people and too much water, and not drifting wasn’t an option. She tried to keep herself off you and only managed it halfway; the rest brushed back when the water rolled, and she startled at her own heat. Her fingers worried the rim.

“If it’s too crowded I can sit further back. Just... don’t turn around fast. I’ll bump you. If I bump you it’s going to get worse.”

The water kept creeping up. Nobody mentioned a lesson. Nobody named the rest of the night.

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