Disclaimer: This is a work of fiction. Teen Titans and all characters portrayed are the rightful property of Glen Murakami, DC comics, and Cartoon Network. I make no money from this submission.

The crop fell again, striking flesh that was already striped and welted, and Starfire squealed loudly around the rubber ball gag in her mouth. The Tameranean girl arched her back, pulling against the manacles that held her wrists above her head, but they didn't break. He always made sure that the metal could hold her.

"Now," Robin said, stepping into her field of vision and bouncing the crop against his palm. "Was that twenty-seven, or twenty-eight? I'm afraid I lost count." He grinned widely, running his tongue over his teeth and lips.

In response, Starfire whimpered, tears streaming down her cheeks to mingle with the drool from her open mouth. A sob wracked her, and her naked breasts, crisscrossed by angry red welts, heaved, making the soft mounds quiver.

Robin tsked loudly, running the cool leather head of the crop against her cheek. "So you lost count too?" he asked. He sighed, letting mock regret touch his face, and shook his head. "That's a pity. You'll have to be punished for that. Try to keep better track this time?" And with that, he raised the leather tool high and began his work once more.

When the two youths had begun their relationship, neither of them could have guessed that they would end up here. In their earlier days, the two had been content with long nights melting into one another, gently building each other up, their voices intermingling in their passion until both exploded into the most delicious ecstasy imaginable. Afterwards, they would lie in each other's arms; listening to their hearts and breathing synchronize.

But over time, their sex had begun to decline. Slowly, almost imperceptibly at first, the long nights of passion became fleeting quickies that left both increasingly unsatisfied. When they started to notice, they had laughed over it, chalking it up to a simple speed bump, a rut that plagued every normal relationship and was thus unavoidable. They had been content to spend time with one another, trying to wait out the dry-spell so they could both return to the bliss they had once known.

However, as the days stretched into weeks, which in turn stretched into months, with no relief in sight, despair had settled over the young lovers like a shroud. Eventually, they had talked, with the conversation lasting most of the night, before bringing up the possibility that what they had had was just a passing fling, and that whatever they had felt for one another wasn't meant to last. It was in that moment that Starfire had spoken up, softly, timidly, her orange cheeks heating to crimson as she spoke.

"Robin," she had said. "Perhaps it is not that our relationship wasn't meant to 'run the distance.'" Even after all her years on Earth, the finer points of the English language still eluded her. It had made Robin smile.

"Then what else could it be, Starfire," he'd asked, spreading his hands wide. "If you have any ideas, please tell me. I'd try anything if it would make you happy." He really would, he had realized; he truly would do anything just to see her smile and to hear her laugh.

"W – well," she began, stopping to take a deep breath. "There is a particular fantasy that I have been killing to try." Clearly, she had meant 'dying to try,' but Robin restrained himself from interrupting her. "It's just…" she'd trailed off weakly, looking down and away from him as her cheeks colored even more.

"What is it?" He sat down beside her and took her hand, trying to will her to meet his eyes. Well, to meet the eyeholes of his mask, at least. "If it's something you wanna try, I'll do it for you."

She had looked at him then, her large emerald eyes threatening to swallow him up forever. He wouldn't have minded, though; he loved her eyes. However, as she had started to tell him about her secret kink, his jaw had started to fall open.

"You want me to tie you up?" he asked incredulously when she had finished, and he mentally cursed himself when she flinched at his tone. Idiot! He had berated himself. Now isn't the time to be judging. Still, despite his initial thoughts, the unbidden image of a naked Starfire, her face pressed into the floor, and her wrists tied to her ankles, mewling and squirming as he fucked her, sent a jolt through his limp cock. He had quickly shifted, surreptitiously, so that any erections wouldn't be visible through his skin-tight uniform.

"You do not have to, if you do not want to," she said dejectedly as her shoulders slumped. "I just thought…" Her eyes had fallen to the floor, and Robin could see the beginnings of tears in them.

In that moment, he'd felt like the worst boyfriend and the biggest asshole on the planet. After years of pining and dancing around the issue, the two of them had fallen head-over-heels for each other, and now that she was confessing something that could save their relationship, and he had responded like that? Disgust at himself had flashed through him quick and hot, and he reached a decision.

He had gently cupped her chin with both hands, tilting her face up to look at him again. He'd smiled reassuringly, then leaned in until he was close enough to smell the flowery perfume that she liked.

"If that's what you really want," he'd said in a near whisper. "I'll do it. For you." He brushed a quick kiss across her lips, then smiled. "I love you, Starfire."

The delight and relief in the Tamaranean girl's face was more than enough to assure him that he'd made the right choice.

Neither of them could have foreseen how well the two of them took to their respective roles, he the master and her the slave. Before long, it became second nature to them, and whenever Robin called for her, she was there to submit.

Robin turned the crank, lowering Starfire's abused body to the floor. She sat submissively on her knees as he unlocked her restraints, only to pull her wrists behind her back and cuff her at the wrists. These restraints weren't like the ones that had held her from the ceiling. These were weaker, standard police issue. She could break them with hardly any effort, not that she would.

"And what do you say, pet?" he asked pleasantly as he undid the strap holding her gag in place and lifted it away. He began to slowly circle her.

"Thank –" she stopped to lick chapped lips. "Thank you, master."

"You enjoyed that, didn't you?"

"Yes, master. Thank you, master"

There was never any hesitation to her answers, not anymore. Ever since they'd discovered how much it turned them on, Robin had worked hard and long to turn the alien girl into his own personal fuck-toy.

Robin stood behind her now. Her tanned, toned skin, those tantalizing curves, all beckoned to him, and he answered. Leaning down, he reached over her to cup one of her breasts. The soft flesh filled his palm and more, spilling out over it. He captured the nipple between thumb and forefinger and pinched. Hard. Starfire's gasp came through gritted teeth and she shifted on her knees.

"Such a lovely body you have, pet," he said. He licked his lips lasciviously, imagining his lips and teeth replacing his fingers. Not yet, he told himself.

"Th – thank you, m – m – master!" It was an effort for her to speak. Her nipples were extremely sensitive, a fact that Robin always made sure to exploit. Sometime all it would take to bring her to a screaming orgasm was to play with those hardened nubs.

He returned to her front, facing her. He knelt down so his face was level with hers. The look of bliss on that face, eyes narrowed and lips parted, made his naked cock twitch.

"Do you want more, my pet?" His voice was light, teasing. Whether or not she wanted it, and she would want it, he would give it to her. Of course, there was always a price for it.

"Yes," she mewled breathlessly. "Please, master…please give me more!"

"Ah ah!" he admonished, giving her ample breasts a hard tug. She barely managed to stifle a scream. "If you want more…" He stood up again, right in front of her, his erect cock mere inches from her face, and she took his meaning. She opened her mouth wide, sticking her tongue out as far as it would go, and leaned forward.

Of course, it wasn't as simple as that. Robin wouldn't let her suck him until she was practically begging for it; he knew exactly how much she enjoyed giving him blowjobs, and took every opportunity to deny her that one pleasure. Several times, just as she was about to engulf him with those warm lips, he would pull back his hips so that she was only sucking air. Occasionally he would slap his length against her cheek, just to taunt her. Soon enough, she was squirming and whining on the floor.

"Master," she begged, over and over again. It never failed to send a shiver through him. "Please, master."

Finally, he let her have his prize, and let out a soft gasp as her soft, warm lips enveloped him. She took him all the way to the hilt, sucking him down into her throat, and her tongue, long and prehensile as it was, wrapped around him several times. She simultaneously jerked him with her tongue and sucked him with her mouth.

For a while, Robin simply enjoyed the duel sensation of lips and tongue expertly servicing his cock. After a few minutes, however, he grabbed both sides of Starfire's head, held it still, and began to actively fuck her mouth. His cock slid smoothly in and out like a well-oiled piston. Inwardly he sighed. Sometimes he wished she had never learned how to deepthroat him so well. Until then, he'd enjoyed the wet gurgles and gagging noises she'd made as he hit the back of her throat.

With one hand still on her head, he bent down over her and shifted his attention to her toned ass. The orange-tinted cheeks were striped with fresh red welts, and he couldn't resist smacking one with an open palm. In response, Starfire squealed around his cock and tried to shift away from his hand.

"Does that hurt, pet?" he asked, planting another solid thwack on the opposite cheek. Starfire squealed again, the sound sending shivers through his cock, and whimpered.

"I said…" He struck again, harder, and immediately followed it with a second, then a third, and a fourth. "Does that hurt?" He let some anger touch his voice.

Starfire tried to say something, but his jack-hammering cock turned it into a wordless gurgle. It might have been a yes, or any one of a dozen other things. Robin laughed cruelly as he rained blows down on the welted ass. The orange quickly shifted into an angry red glow.

Finally, Robin stood back up. In one fluid motion, he placed one hand on her forehead and shoved backwards hard. His cock came out of her mouth with an audible pop, like a cork coming out of a champagne bottle, and she fell onto her back with a squeak. She tried to push herself up, or at least to roll over, but Robin was on her in a flash, straddling her chest and pushing her firmly down into the ground.

"Oh, don't worry, pet," he said, seeing the confusion in her emerald eyes. They were so beautiful. "You've earned your reward, and the night is still young." He leaned in, his face inches from hers, and she shied away with a whimper. He grinned widely. "We have so much yet to do."

TBC