Her ass

You grasp her hair and pull her head up from her position on the floor. "Do you feel like obeying, Marait? I am your master, and I would truly enjoy not needing to compel you..." You loosen your grip on her hair, giving her the opportunity to comply willingly. From somewhere, she dredges up the ferocity to yank her head down and to the side, pulling her hair out of your hand. You sigh as she begins to drag herself up to her knees, trying not to put weight on her sore shoulders. You place your foot on her back and drive her back to the floor. Her aching arms give out and she crashes back down to the forest floor. With a gesture, a vine slithers out of the bushes and she recoils from it. Nevertheless, it slithers up her naked body, winding its way around her legs, rubbing across her slit, tightening briefly around her tits and making her gasp. It loops itself around her neck and knots into a thick ball, the trailing end curling up into your hand. With it, you drag Marait by her neck across the ground, her frantic efforts to reach a crawl aiding your efforts. You toss the vine up over a branch and catch it on its way down, pulling further to drag the **** woman up on her toes. You lay the vine down on a knobby sapling, and it tightens itself up. With both her legs and her arms free, she swings a fist at you as you approach. You step back, chuckling, and gesture with one finger. Immediately, her left foot picks up off the ground. Her **** worsens, all her weight now on the toes of one foot and only the noose keeping her from falling over. "Finished, dear?" you ask mildly. "I can always raise the other one..." She shudders and nods, and you relax the rope slightly and release her foot, and she settles back down onto her feet, rubbing her neck. 

"Now, Marait, turn around." She stares at you with helpless hatred. You raise a finger and twirl it indicatively. "Now, darling. I want to fuck you in the ass. And I'm not going to restrain your hands or legs, or compel you in this. You're going to let me. Or..." Your eyes go to the vine around her neck. "Or you learn to live with very, very little air. It's surprising, actually, how little you can get by on. And for how long." Still glaring impotently, she turns her body around, her hands clenched into fists at her sides. You move up behind her and run your hands along her sides, enjoying the feel of her skin. Your hands circle around and caress her breasts, and her whole body shudders with **** and control as she fights to keep her hands at her sides. You slide them down to her belly and thighs, and she remains upright, leaning slightly backward into your chest as she pulls herself as far away from the roaming hands as she can. As you rub yourself in the groove of her ass, hard as iron, she tenses her ass together, unable to control her ****. You growl into her ear and slap her on her pussy, and she yelps and crouches down to protect herself, restrained by the noose around her neck. After a moment she recovers her broken composure and stands firm on her feet again. As she does, you slide your head up against her hole, and murmur to her, "Let me in, darling. Give yourself to your Master." She shudders and her ass wriggles as she alternately forces herself to relax and then tenses up again. You push into her as she relaxes and she gasps and tenses around you. The tightness is perfect, like nothing you've ever felt. Her ass wraps around your cock, clenching and relaxing like a massage. You smile and rub her clit with one hand, gesturing surreptitiously with the other. As she moans and writhes back against you, you push yourself deeper into her, sliding two fingers into her pussy and moving them in and out. Her juice covers your fingers and you continue, feeling your pulsing in her ass with your fingers as you move towards climax. You pull your fingers out of her and bring them up to her face, pushing them into her moaning mouth before she realizes what's happening. Her face twists but you lock your hand onto her jaw, preventing her from pushing you out. With your last thrust you empty yourself deep in her anus, her final moan trailing off into a coughing fit. As you slide out of her, your hand in her mouth drags her head around to face you. You point above her and smile. The vine hangs slack off the branch, putting no pressure on her throat. "Well done, darling. I promised I wouldn't compel you... you gave yourself to me all on your own." Her face twists in revulsion and she throws herself backwards, away from you. You laugh and a gesture pulls her up to her knees. " I'm not finished, dear. I need you to clean me... and I think your mouth will be required."