Release her.

Walking past her agonized face, you slip the knife tip under her belt and cut through it, then slide it down the curve of her back into the groove of her ass. You lever it gently up, teasingly cutting her leggings slowly apart. Slitting down the inseams, her leggings fall away, along with her loincloth. Her long, lovely legs now hang exposed, leading down to her lovely round ass and beneath her her a thin, fuzzy blonde bush hides her pussy. At your command the vines lower her gently towards the ground. As she comes closer to it, she sucks in her breath in anticipation of the easing of pressure on her limbs. Just an inch shy of the ground you halt her progress, her face so close to the ground she could stick out her tongue and touch it. Her arms shudder with pain as she writhes, **** for the release the ground offers. After a moment you release her altogether, and she thumps to the ground with a thud. You step back and decide the sobbing wreck before you has had enough... for the moment.