She wasn't going to be able to take much more. Oh, she was trying so hard to be good for Him, but he was being so cruel today. For hours now he'd been denying her, teasing her to the edge of an orgasm, then leaving her quivering and panting to lie there as he left the room. She wasn't bound, she could've reached down between twitching thighs and finished herself off, but she didn't have permission and his will was just as powerful as a set of handcuffs or a well-tied rope. She hadn't done anything to deserve this exquisite torture, and begged him to end it every time he came back to her. He knew better. Although she wouldn't admit it, part of her was in Heaven, she was his and if her Master didn't want her to cum yet, she would do the best she possibly could to please him. But she wasn't going to be able to take much more.
She was sprawled out in her Master's bed, her hands clutching twin handfuls of the soft sheets beneath her. She didn't think she'd be able to stop them from moving to places they'd been banned from without something to hold onto. She'd kept her legs spread slightly, afraid even the pressure of crossing her legs might prove too much and set her off. The room was warm, but she was shivering, the days activities taking their toll on her. Every time she heard the slightest noise, her entire body tensed hoping and dreading that her Master was back. Maybe he was finally going to give her what she'd been begging for all night.
He finally did return, smiling at the tension he could see etched on her face. He knew exactly what he was doing to his slut and was actually hoping for once that she would fail him. He was testing her to see how long she could last like this. He'd been doing everything he knew that she loved, and was actually succeeding admirably at resisting. But he wasn't going to stop, not until she snapped, and helped herself.
He stood in the doorway, knowing she knew he was there, letting her anxiety build. Was he not going to come to her? Was this another way of him punishing her? But she felt his weight shift the bed and knew he wasn't going to ignore her. She realized he was between her legs, and she whimpered expecting another oral assault. Those were the worst, he would lap up the juices accumulated between her thighs, never touching her where she desperately needed it. She'd writhe about as much as she dared, trying to get his tongue inside her, but she usually pressed it too far and he'd flip her over and spank her until she calmed down. The last time he'd come to her, he had nibbled and sucked so gently on her clit she wasn't even sure she could feel it, and it drove her to the brink of insanity. He'd let her get so close, then stop, and watch her, making sure she wouldn't move to finish herself off. He'd kneeled over her on that last visit, and furiously masturbated himself off over her. When she'd tried to reach for him, her hand was slapped away, and she lay there whimpering as he finally groaned and came. Oh he even made sure to cum out of reach of her tongue, the warn cum landing on her breasts and neck. He warned her using the authoritative tone she loved and feared, that if she tasted so much of a drop, he'd leave her in there for days. Such a waste of her favorite snack.
But to her hope and horror she felt his hands lifting her legs, placing them atop his shoulders and she realized what was going to happen. He thrust himself into her soaked pussy with one brutal thrust. He hadn't used anything but a single finger in there all day, and the girth of him caused that delicious stretching pain she'd come to love every time he took her this way. The slight bit of pain was the only thing that tempered her pleasure and kept her from cumming on that one thrust. The scream that forced it's way out of her was music to his ears, but he resisted the urge to start thrusting, and held himself entirely inside her. After a moment he felt her hips start to move in circles so small he wasn't sure he could see it. But he could definitely feel it.
He grabbed her by the hair, turning her and forcing her to look him in the eye. "Slut, if you don't stop moving right now, I'm going to flip you over and fuck your ass and leave you here until tomorrow."
He gave a single thrust to emphasize his point, but that hard thrust and his words finally made her snap.