su-laki

also known as the alternate sula, a slave lays flat on the floor, face upward her hands at her sides, palms open and up, legs are spread wide in preparation for her Master's pleasure, she slowly lifts her hips of the floor

an example

with soft and sensuous motions a girl lays flat on the floor seductively spreading her legs wide, her glowing face looks upwards as she places her arms by her side with her palms open and facing up in submission, wantonly she raises her hip off the floor and awaits her Master's pleasure

quote

Then she lay on her back, her knees drawn up, before me. She arched her back. Her breasts were lifted beautifully. I observed their lovely rise and fall, correlated with the respiratory cycle of her small lungs. Then she lay back, her shoulders in the dirt, and pressing against the earth with her small feet, piteously lifted before me, for my examination, and seizure, if I pleased, the deep belly of her, the sweet cradle of her slave's heat.
Explorers of Gor page 329