Thank you to BradCarpenter for editing this story.
***
Ken was lying naked on Karen's bed while she stroked his hard-on with gentle, slow, soft strokes. She sat on the edge of the bed, fully closed, in a white shirt and short black skirt. She had been teasing his cock for nearly an hour.
"I'm looking for new challenges!" She told Ken, while curling her index finger around the top of his cock.
Ken gasped.
"It was fun training myself with you. But now I can effortlessly do anything I want to you and you are unable to stop me. You are addicted to my body, my strength, and my willpower." With three hard, fast strokes she brought him to the edge of an orgasm.
Ken winced and buckled suffering a mixture of arousal, frustration, and light pain. He knew that she was able to hold him in this state of near cumming for a long time. She often enjoyed letting him struggle for release. She changed pace and pressure again. He barely felt her touch. He muffled a groan.
"Dealing with is you is very relaxing for me. It feels so comfortable and familiar. I like it!" She let go of his cock for a moment.
For some moments, he caught his breath but soon gasped again. She blew a soft warm breath on his cock and his cock twitched like it was searching blindfolded for contact with her skin. Then she wanked him again with only two fingers.
"To subdue my math teacher was an exciting experience. But I knew he hadn't had much contact with women. Also, I could use his strong foot and leg fetish to my advantage. He hadn't experienced any woman before who had appreciated his fetishes. So this was very new for him, and some parts of him wanted to lose to me. So he gave in to my sexuality." Karen stopped stroking him, stood up, and took her skirt and panties off.
She placed her cunt over Ken's mouth, catching his eyes with her intense glance.
"Lick!" She ordered.
While Ken licked her, she humped up and down on his face, one arm stretched above her head. She looked like a cowgirl riding a wild horse. Ken had trouble following her motions while licking her.
"My new challenge is Nick. You know Nick? He is almost 20 and he is known to be a sadist." She explained.
"But he's not only a sadist. Most sadists respect women. Their play in SM-sessions are just love games, you know? But I've heard, he doesn't care for the feelings of the women he played with. He really wounded some of my friends. I think it's time to teach him a lesson, and I want to do it. It must be really exiting to subdue a sadist." Karen continued.
Ken shook his head in disagreement and stopped licking: "Don't try it Karen, it could be dangerous!"
"Yes, he is dangerous. But that's the point. It's such a thrill! Now, shut up, boy! There is nothing to discuss. By the way, who will stop me? You?" She chuckled and pressed her crotch hard against his mouth and nose. He couldn't breathe for a moment. She rose up a little to give Ken space to lick her cunt and clit again.
When she was near an orgasm, she grabbed his head with both hands.
"Harder, boy!" After some moments, she pressed Ken's head hard against her wet cunt.
She let out a high-pitched scream and climaxed hard and long. Her cum spurted in Ken's open mouth. After some seconds, she let his head go. Ken panted for air.
"Open my blouse!" Despite her mind-blowing orgasm, she looked fresh and relaxed.
After he unbuttoned her, she stripped off the blouse. He adored her firm, well defined tummy and her perky breasts protruding in the air. She placed his hands on her big stiff nipples. He rubbed and tweaked them soft between his fingers.
"Now lick me very, very, soft and slow, boy!" Karen's pleased smile made Ken proud and happy.
She pressed her arms to her side and looked down at her prey. This time without moving herself, she ordered Ken. "Slide your tongue over my clit and in my pussy. You know how I like to feel your tongue and teeth. Keep going." When she was close to an orgasm again, she moved back and placed her cunt over his still rock hard cock.
"I'll tell you what I think about Nick." With one hand, she inserted the tip of his cock and took him all way in.
Without visible motion, she began to massage his cock with her strong, trained inner muscles. Although this was a familiar feeling for Ken, it blew his mind like it was the first time.
Karen continued, "I don't think, Nick is a real sadist. I think it is like some homophobic men. They hate homosexuality to hide their own gay side from themselves and others. They are in fear of losing their masculinity. I think Nick fears his submissive and masochistic side. I will show it to himβthe hard way.
"I'll make the sadist mine!" She raised her body until Ken's cock almost left her pussy completely.
"I'll hurt him and humiliate him!" She took Ken's cock all way in.
"I enslave the sadist!" She slowly rose upwards until only the tip of his cock was in contact with her cunt.
"I'll make him whimper and whine!" Karen plunged on his cock and Ken grunted.
After the next stroke, she shrieked out loud and she and Ken violently came together. She collapsed over him and pinched her fingernails into his back.
"Oh, that was good, boy!" She purred after her orgasm faded away.
Totally exhausted, Ken had difficulty not closing his eyes.
"You look tired, boy!" Karen chuckled and kissed him soft on his lips, while he fell asleep.
***
After school, Karen stepped up to Nick before he left the schoolyard.
"Ehm, hello!" She lowered her gaze.
Nick had an arrogant expression on his face. "Hello! What do you want, girl?"
"Ehm, I heard, that you are . . ." Karen stopped speaking, she seemed to be nervous.
"I am what?" Nick grabbed her chin and raised her head until Karen had to look into his eyes.
After some moments, she lowered her gaze again. "That should give him the feeling that he was the one with more willpower," she thought.
Karen sighed: "I've heard, that, that you are into, intoβBDSM . . ."
Nick was pleased and he checked Karen out, she seemed to him to be a good plaything. He had mentioned her good looking face and her beautiful slim and firm body before and often imagined playing with this beautiful woman, but he was never the one who asked for something. Never! That could damage his reputation as a sadist.
"What do you want?" After a moment he decided to address her in a sexual connotation. "Bitch!"