Ishaza's breathing isn't far behind Sable's. That teasing tendril against her clitoris is just what she needs, and Sable's thrusts against her are grinding against her g-spot. She wants to grab Sable and hold on - but the bindings hold her back, leaving her only able to writhe in Sable's grasp, completely helpless to her pace.
It's really, really turning her on, honestly. A less skilled lover could leave her cold, here, but Sable's gentle touches and smooth strokes are genuinely melting her. It's not enough, she needs more -
"Please," she moans. "Take me. More. More, please." The plaintive note in her voice is entirely artless.