Seiji watched, transfixed, as Yumi slowly and carefully slid off her leggings, avoiding spilling any of his cum. Underneath, she was wearing a pair of cute white panties that highlighted instead of covering what they were meant to cover.
Seiji swallowed hard.
Yumi gazed at him, and Seiji noticed her expression changing: kind of darkening and growing more intense. She got up, barefoot, her curves flowing freely as she moved. She skin seemed to glow in the soft light of the living room.
"Like what you see, Seiji?" Yumi asked, a slight tease in her voice.
Seiji nodded without thinking, his face flushed again.
"Which part?"
He didn't know how to respond, yet she moved closer. The scent of her body made his head spin.
"Do you see it?" she asked, strained.
"What?" Seiji stammered. All he could see was her sexy legs, slim and perfect in every way. He'd never thought Yumi was so crazy sexy.
"That spot," she said, pointing at her panties. "Do you know what it means?"
Seiji shook his head, his breath catching in his throat. "No," was all he managed to whisper.
"It means it's all wet," Yumi said, her voice suddenly throaty. "You made me wet when you came."
Her breath was so close to him that it sent shivers down his spine, as if her words touched his skin. "Aren't you feeling sorry?" Her eyes flickered.
Seiji choked on his words. "I - I am…"
Yumi took his hand, guiding it to her thigh. Her skin was incredibly soft and warm, and he could feel the slight tremble of her muscles as she moved his hand up, up to the damp part of her panties.
"Then you need to fix it," she said with urgency, moving his fingers to push her panties to the side. Seiji could now fully sense Yumi's heat and wetness, and he stopped thinking, slowly tracing the outline of her pussy. His fingers slipped easily somewhere deeper…
"Am I really touching a woman?" His thoughts were totally scrambled. "It's so easy… I just want to do more of it."
"Here," purred Yumi, as she lowered herself back onto the sofa, clinching his hand between her legs.
Seiji realized he was kneeling next to Yumi, his fingers already slipping into her. Yumi let out a low moan, her body suddenly trembling.
"Does it hurt?" Seiji asked, concerned.
"No," Yumi mouthed. "It's just too good."
She held his hand, not letting him pull away. "Slowly at first," she whispered, guiding his fingers deeper.
He watched her body react, shifting and arching as his fingers moved deeper.
"Yeah, just like that," she whispered as he started moving his fingers inside her, her voice suddenly breaking.
Seiji continued, looking for clues. It was the first time he had his digits inside a woman, so he was lost, but Yumi was guiding him, moving his wrist and spreading her legs wider.
"Harder," she told him, setting the rhythm for him.
Seiji could feel the tension building in her body by the way her muscles clenched around his fingers. He watched in amazement as his sister's beautiful body twisted and jolted as he moved his fingers. It was as if he was playing her as an instrument, and the sights and sounds made his own body throb.
"If this is the power I have over women, I'll be the happiest guy in the world!" he thought.
He pressed harder, and Yumi's back arched off the sofa. She threw her head back and at the same time let go of Seiji's wrist and flicked her clit a few times, inhaling sharply. With that, with a loud moan, Yumi came, her body shuddering as her pussy squeezed around Seiji's fingers, as if giving him a firm handshake.
"Holy crap!" Seiji thought. "I can't believe it! I've just fingered my sister—and made her cum!"
He'd never seen a woman orgasm before, and now he knew what he wanted in life—to give women orgasms. Every single one of them. Over and over and over again.
While Seiji was planning the rest of his life, Yumi's body softened, and he slid his fingers out. They were all covered in her juices, fresh and fragrant.
Yumi slowly opened her eyes, smiling blissfully. "Phew," she breathed. "That was so, so good. I really needed that." She exhaled deeply, circling her pussy with the palm of her hand, looking peaceful and satisfied.
"Thanks, brother," she murmured, reaching for his face with one hand and rubbing his chin.
Then her gaze slowly switched from his eyes to his lower body. "Ah, you're hard again!" she exclaimed. "How is that possible? Didn't you have enough?"
Seiji realized she was right. He was hard. Very hard.
"I also thought I had enough," he replied. "But now I know I didn't."