Rin vs Shizuka

"Mmm, Kyoko is a nice woman, until you get on her bad side." Rin replied. "And she choose well in sending you as her proxy. The younger girls rarely do as well as you have Tsuzaki-san."
He turned loose her breast, his roving hands drifting over the cheeks of Shizuka's rear, his fingernails lightly teasing them. After he groaned from the firmness of Shizuka's love pearl, he moved his hips, dragging the ridge of his member's head back and forth over it.
His face drifted close to Shizuka's as he kissed her lightly, his tongue flicking nimbly over her lips, a teasingly proclamation of what it could do to her lower lips....

There was a noticeable note of pleasure in Shizuka's tone as she replied "I appreciate your praise, Sensei..."

And then it was her turn to groan as the hard ridge of Rin's sexual head scoured away at her pulsing clit. Her hands sought out his, her fingers intending to interlace with their opposites, leaving this exchange a matter purely between their hips and sexes.

She met his lips halfway down, enjoyed his tongue play all over her lips before sending out her own to entwine with his passionately. Downstairs her damp sex lips nibbled at his member in support of her clit. Her sex button now stroked and dug into the shallow valley of sensitive flesh at where his ridge arose from his flesh.

"Mmm..."

Rin's eyes widened in panic as he felt his member throb under Shizuka's assault. His hands bound by the younger girl's hands and he couldn't move them to target a part of her body. A drop of his precum was teased from the head of his member as he moaned, feeling the pressure now....

Shizuka's eyes narrowed in pleasure at Rin's predicament. She hungrily swallowed his moan as she pressed her attack, her tongue wrestling with his, her nub burrowing into him. Her face was flush with the thrill of gaining the lead in this mutual grinding, so much that she couldn't help but spill a little of her own precum upon the ridge her sex lips chewed on, even as Rin's precum traveled slowly down his head to find her, titillating her even more. The girl thrust her hips stronger and firmer each time, forcing the pulsing flesh of Rin's member and her sex to battle harder and hotter, going after her older opponent with a lust belied by her youthful look.

Rin gave a started moan at Shizuka's aggressiveness but felt the younger woman's juices flowing.
*She's getting excited by the fact that she's beating me. I might be able to use that...if I can hold out long enough.* he thought.
He began to allow Shizuka's weight to push him towards the wall, slowly, as if he was in retreat. His breath came in ragged gasps as he felt his lust, once so firmly under control, start to rise beyond the point of no return, the doctor not having to fake being close to losing control. Once he felt the wall, he would spin and put her back against the wall, hopefully pinning the Japanese girl. Then he would thrust, shifting his hips to brush her clit with the less sensitive underside of his shaft, trying to take some pressure off his member.

Shizuka was all too quick and happy to push into Rin at his slightest sign of weakness. There was nothing more she wanted right now than to fuck the Boys' doctor against the wall. She savored every step she gained, every gasp Rin surrendered upon her lips for her tongue to enjoy. She thought she could almost taste her victory-

"Unfh!"

-until Rin slammed her into the wall.

Her eyes shot open with alarm and slight pain. Rin's new thrust into her sex kept them wide. Now she was the one panting for breath as her clit crumpled underneath the firmer side of his member that was now being brought to bear.

He reversed our positions! He's pinning me! Shizuka wriggled beneath him try and protect her wet pussy. But now Rin's greater size and weight was bearing down on her to great effect. The Devil Violet was starting to wilt under the good doctor's surgically-delivered thrusts.

Rin knew he had to strike now. If Shizuka regained her wits and the advantage, he didn't know if he'd be able to hold out. The doctor continued to thrust his shaft into the younger girl's clit. His mouth released Shizuka's, freeing her to voice her opinion on the turn of events as he began to kiss and gently nibble her ear and then move down towards the hollow of her throat.
"Tell me, Tsuzaki-san, how long has it been since a man pleased you?" he said softly, looking to disrupt the girl's focus some. "Not as a slave, but like this, getting past your guard, wearing down your defenses..."

Shizuka shivered with every jolt upon her clit, Her lips, the ones Rin released and the ones that now began to drool, trembled together in agony and anger as wet kisses wandered from her ear down to her soft white throat. She shut her eyes to try and blank out her desperate situation.

"Y-you..."

Enough playing around. She could free herself if she struck now. She wanted to strike. This was a man playing with her. Her teeth almost gnashed.

No... I promised Kyoko-sensei... and Rin-sensei is... he is...

Her eyes shot open. Then they narrowed. She almost smiled. Instead she sounded pleased.

"Never... not like this... not like you, Rin..."

No more -sensei. Just... Rin.

"Not like me? What is that supposed to mean....Shizuka?" he said.
He continued to grind into her sex pearl, not wanting the younger girl to regain her focus. Although truth be told, looking into her eyes, Rin could believe the rumors and reputation of Shizuka's hate for men, even the ones who hadn't tried to harm her. The danger in her look was both terrifying....and alluring.

Her initial response was to grind back as best as she could. A difficult task considering her helpless position. But she was nothing if not obstinate. Her clit's occasional, limited counterstrikes into his member reminded him that she wasn't surrendering, not yet, never. She was merely... merely satisfying herself. Sexually, by the way she gasped as if enjoying herself, by the increasing wetness in between her legs that dampened his dominant length. Mentally, apparently, by the pleasure in her tone.

"Neither slave," Shizuka finally told him between moans, "Nor swine... just..." Hesitation as she seemed to fold beneath his latest stroke. "Just Rin... not a man... only Rin..."