The room was bare concrete, lit by a single overhead lamp. The girl was already on her knees, wrists bound behind her back with a short length of rope. She was naked, skin pale under the light, breathing fast through her nose.

The brunette stepped in first, also naked, hair tied back. She circled once, then crouched in front of the girl and took her by the throat with one hand, not squeezing yet, just holding. The blonde came from the side, silent, and knelt behind. She pressed her body against the girl’s back, one arm sliding around her waist, the other reaching down between her legs. Two fingers pushed in without warning. The girl jerked. The brunette tightened her grip on the throat just enough to still her.

“Stay,” the brunette said.

The blonde worked her fingers slowly at first, then faster, curling them. The girl made a small, strained sound. The brunette watched her face, then leaned in and bit her lower lip, hard enough to draw blood. When she pulled back, she licked it off her own mouth. Her free hand went to the girl’s breast, pinching the nipple, rolling it between thumb and finger until the girl tried to twist away. The blonde held her hips still and kept fucking her with her fingers, deeper now, the wet sound loud in the quiet room.

The brunette shifted her grip from the throat to the back of the girl’s neck and forced her head down. The blonde withdrew her fingers, slick, and smeared them across the girl’s mouth. The girl tasted herself and tried to turn her face. The brunette didn’t let her. She pushed two fingers past the girl’s lips instead, pressing down on her tongue, then slid them back out and drove them into her cunt alongside the blonde’s returning hand. Four fingers now, stretching her. The girl shook. The brunette used her other hand to slap her breast, then her face, open-palmed, once, twice. Each time the girl tried to pull away, the blonde locked an arm around her ribs and held her in place.

They switched. The blonde moved to the front, took the girl’s throat in both hands this time, thumbs pressing under the jaw. The brunette stayed behind, one hand on the girl’s hip, the other reaching around to rub hard circles over her clit while three fingers pushed back inside her. The girl’s knees slipped on the concrete. The blonde kept her upright by the throat, not fully choking, just controlling the air. The brunette leaned over the girl’s shoulder and bit the side of her neck, then her ear, while her fingers worked faster. The girl came with a broken sound, body seizing. The blonde didn’t loosen her hands. The brunette didn’t stop. She kept thrusting until the girl was shaking again, oversensitive, trying weakly to close her thighs. The blonde forced them open with one knee and held them.

The brunette pulled her fingers out, wiped them across the girl’s chest, then stood. She looked down at the blonde.

“Finish it.”

The blonde rose, still naked, and stepped behind the girl again. She locked one arm around the girl’s neck from behind, the other hand covering her mouth and nose. The brunette knelt in front once more, spread the girl’s legs wider, and pushed three fingers back inside her, pumping hard and steady while the blonde cut off her air. The girl’s body bucked once, twice. Her hips jerked against the brunette’s hand. The blonde held the choke until the struggling stopped, then a little longer. When she finally let go, the girl slumped forward. The brunette caught her by the hair, kept her fingers buried, and finished with a few slow, deep strokes before pulling out.

They left her on the floor under the lamp. The brunette wiped her hand on the girl’s thigh. The blonde stretched, rolled her shoulders, and walked toward the door without looking back. The overhead light stayed on.