Involuntary Sisters

Sonya pressed herself against the hallway wall as if she wanted to pass through it. Her arms were crossed so tightly her knuckles turned white, but it was useless: beneath the torn fabric of her T-shirt, her breasts rose and fell with short breaths, beyond her control. Each inhalation made her nipples stand out more, dark and thick, as if trying to pierce the remaining fabric.

"No… please, not again," she whispered, almost to herself. "It already happened once… I swore I wouldn't let them do it again…" Amy took a slow step toward her, barefoot, the floorboards creaking beneath her feet. There was no hurry in her stride; she seemed to savor every second of the anticipation. Her own breasts—Lulu and Mimi—swayed slightly with each movement, but now they were more erect, alert, like animals that have caught the scent of fresh blood.

"You were always the good one, weren't you, Sonya?" Amy said in a soft, almost maternal voice. The one who never lingered in front of the mirror for too long. The one who put her hand over her mouth to stifle a moan when she came alone in bed. But they… —she gestured with her chin down— they always knew you loved them too.

Sonya shook her head, tears welling in her lower lashes.

“That’s not true. I didn’t… I didn’t call them. It was an accident. I only touched myself once, thinking about… about someone. And then they started talking. And moving. And they didn’t stop.”

Lulu let out a sharp giggle from Amy’s left breast.

“A delicious accident, I’d say. Your first moan was like opening a door. And now that it’s open… why close it?”

Mimi, more seriously, added:

“Your sister already let us play with the doctor. He’s still all wet and warm. He smells like you too, Sonya. He smells like family.”

Sonya glanced at me for a moment. I remained seated on the sofa, motionless, my breath ragged, my erection painfully hard, betraying me. Our eyes met, and I saw in hers an impossible mixture: shame, fear… and a flicker of morbid curiosity.

Amy moved closer. Now only thirty centimeters separated us. Their breasts began to lean toward each other, like magnets. First, just a touch: Lulu's nipple grazed Sonya's through the remnants of fabric. Sonya gasped, as if she'd been given an electric shock.

"No… don't do it…" But her own breasts answered for her. They pushed forward, snapping the last threads of the T-shirt. The fabric fell in shreds to the floor. Now they were naked, skin to skin. All four breasts met in the center: pressing together, rubbing against each other, nipples brushing in slow, deliberate circles.

Sonya squeezed her eyes shut, but her mouth opened in a silent moan. Her hips involuntarily shifted forward, seeking more contact.

Amy placed her hands on her sister's shoulders, not to hold her, but to steady her.

"Look at me," she whispered.

Sonya opened her eyes. Tears streamed down her cheeks, but her pupils were dilated, wide.

"Tell them yes," Amy said. "Just one word. And I promise it will be… unforgettable."

Sonya's breasts spoke then, with two voices emerging at precisely the same time, like a perfect echo:

"We want the doctor…"

"We want Mom when she gets here…"

"We want everything."

Sonya trembled all over. She looked at me again. This time she didn't ask for help. She just said, her voice breaking:

"Come… please."

I don't know if she was talking to me… or to what was awakening inside her. I got up from the sofa without realizing it. My legs moved on their own. When I reached her side, Lulu and Mimi moved aside a little, making room. Sonya's breasts rose toward me, trembling with anticipation.

I touched one with my fingertips. It was warm. Warmer than human skin should be. And it stirred beneath my palm, like a small, eager animal.

Sonya moaned loudly for the first time.

And in that moment, I knew there was no turning back.