Sister's Sex-Toy Punishment

Kelly wanted to try anal and spanking. But her boyfriend was a drip who only liked vanilla sex. Then one day, she discovered a set of experimental sex-toys. But these weren't meant for Kelly. When her body starts to change, can she confess the truth to her brother and sister? And will they give her the punishment her body desperately craves?

~~~~~ PG Excerpt ~~~~~

“I’m bad,” she insisted. A thick, wet heat gathered in her middle at the confession. Almost without thinking, she rolled over onto her tummy and lifted her bottom. The long, threadbare t-shirt she had worn to bed slid down her back, exposing her rear. Her nether-lips parted, and the damp cloth of her panties wedged itself into her cleft, deliciously naughty. “I’m bad,” she repeated, she repeated, her voice thick with desire and wild, inchoate longing. “Punish me,” she begged. “Please?”

Silence fell. “Punish you?” Carl’s voice was a low, rumbling growl. His hand fell on Kelly’s back. She whimpered as it slid lower, one big palm cupping her curves.

“Carl?” Addison sounded uncertain. “What are you doing?”

“What she wants,” he replied evenly. “Look at her, Addy. Look at how wet she is. I can practically smell it. She wants it.”

“Not it,” Kelly gasped. “You. Both of you.”

Addison stared. “Both of us?”

“Mmmm.” Kelly wiggled her rump in an inviting sort of way. Unlike Martin, Carl was able to take a hint. Kelly had to bite her lip as he slowly, torturously peeled her panties off. They almost seemed to want to stick to her. But at last they slid down her thighs and away. The cool, air-conditioned air did nothing to quench her fire. “I think you’re gorgeous, Addy.” She reached out and snugged her sister around the hips, pulling her closer to the bed. “I bet you taste like candy.”

Her sister gaped at her. “What?” Then she spun to Cark. Kelly could see some of the old, bitter suspicion on her face. “Did you do this?”

“Did I do what?”

“Make Kelly bisexual?”

“What?” It was really interesting, Kelly realized, to see her brother off balance. But even naked and with Addison glaring at him, he recovered swiftly. “No! Of course not! The nanobots and the body-sculpture doesn’t affect sexual preference. Just appearance. And libido. I’m not going to play God and try to take away a person’s free will. That’s just…that’s just wrong.”

“Addison,” Kelly put in. “He’s right. I’m bi. I’ve always been bi.”

Her sister’s return look was hurt. “You never told me.”

“I never told anyone. Not even Mom. And anyway, why would I talk to you about sex, Addy? You were never interested in it, remember? Every time someone mentioned that it was fun to screw, you looked like you wanted to hurl. If you don’t want me,” she went on, heat rising in her voice, “I’ll stay in here with Carl, and you can go back to your room.” She looked up at her brother, who was watching the scene with a bemused smile on his face. She reached out his hand and stroked his shaft. So big. So hard. “He wants me.”

“Nasty, bitchy, foul-mouthed little brat.”

Kelly smirked and wiggled her bottom tauntingly. Carl and Addison stared at each other. She couldn’t guess what unspoken words passed between them while she lay on the bed, writhing with impatience.

Finally, Addison nodded. “Do it, Carl. Spank her raw.”