There was nothing in it for five laps, then Carl realised that Caroline was drawing ahead. Fit as he was, she was out-swimming him. He reached deep into his reserves but at the end of the tenth lap he was still half a yard behind. Panting, they hung onto the end of the pool until Caroline hauled herself deftly from the water and twisted, to seat herself neatly on the edge. She grinned down at Carl, who stared almost mesmerised at her heaving breasts.
“I guess I win, slave,” she said softly. She reached across to where her robe lay and took out her watch. “It’s ten thirty-five now. Your slavery starts when I say, for an hour. Okay?”
“Why not now?”
“I thought you might want to use the john, grab a sandwich, or something, first. Remember, for an hour you do everything I command. But now, I’d like to ask a favour.”
“What sort of favour?”
“Once I’ve dried off, will you put sunblock on my back for me?”
“Yeah, sure. You do it for me?”
“Of course,” said Caroline. Carl reached for the sunblock, trying not to stare as Caroline began to dry her tits.
A few minutes later, Caroline was face down on a lounger and Carl was rubbing sunblock into her skin. He grinned, seeing the tan lines on her back and ass. A thong bikini bottom, he guessed. Lovely butt. Caroline moved to get comfortable and spread her legs slightly. Mesmerised, Carl stared at the glimpse of her pussy crack now revealed. Not a trace of hair. Her turn of phrase came back to mind. ‘Cleared for action’, she’d said. Shaving her pussy for sex? Wow!
“Finished, Carl?” Caroline said in a drowsy voice.
“What? Oh! Yeah, sorry.” Carl sat back, still staring at his sister’s mysteries.
Caroline surprised him by sitting up and twisting round. “Your turn now, Carl.” She stopped, staring. Carl glanced down and blushed scarlet. His prick was standing at almost full attention. He’d been so hypnotised by seeing his sister’s pussy that he hadn’t noticed. Mortified, he raised his eyes to Caroline’s. She was grinning, her eyes alight with mischief. “Very nice, Carl, very nice.”
“Um,” he began.
“It’s okay. I think I probably flashed my pussy, was that it?”
Mute, Carl nodded.
Caroline looked down at herself, then back at Carl. “I guess it’s hard to see a girl’s equipment,” she said softly, “while a guy’s is out there for the world.” She reached out and squeezed Carl’s fingers, then moved, spreading her legs. “Fair’s fair, bro, I don’t mind you looking.”
Carl stared. He was right, the little tuft of hair on Caroline’s mons as all she had left on her pussy. Her lower lips were a little swollen, pink; beautiful, he thought. He looked back up at Caroline, and she smiled.
“Like it?”
He nodded. “Beautiful,” he said, struggling to get the word out past the obstruction in his throat.
“Thanks, Carl. You look pretty good yourself.” Caroline bit her lip. She’d had a sudden vision in her mind, but she didn’t know if what she was about to say would excite Carl or revolt him. Only one way to find out. “Carl?”
His eyes came back to hers. “Yeah?”
“How often do you masturbate?” She smiled faintly. “I need to do it every day, until I see Jimmy again.”
Shock ran through Carl. He’d imagined Caroline was still virgin, then kicked himself mentally. Why should she be? Rhonda was younger, and he’d been having sex, great sex, with her for nearly a year now.
“Carl?”
“Oh! Sorry.” Carl grinned sheepishly. “Every day, sis. Sometimes twice a day.”
“Do you just use your hand?”
Carl made a face. “Yeah. At least a guy can satisfy himself easily and quickly that way. You?”
Caroline laughed softly. “Depends where I am. Sometimes just my fingers, but if I’m in my own bed, either here or at college, I usually have a dildo handy.” She grinned. “Only snag is, dildoes aren’t as warm as a man, and they don’t hug you or hold you close.” She chewed her lip again. “Carl? Can I ask you a tremendous favour?”
“What?”
Caroline took a deep breath, causing Carl to cast another appreciative look at his gorgeous sister’s upper-body assets. She grinned as she caught his eye. “Carl, sex with Jimmy is great, but I’ve never seen him come, never seen any guy come. Will you jack off for me?” She flushed, holding her breath as Carl stared at her, relaxing as he smiled slowly.
“Yeah, sis, but there’s a condition.”
“You get to watch me, too?” Caroline said wryly.
Carl nodded.
Caroline smiled. “It’s a deal.” She looked around. “I think we’d better go inside. Getting caught naked just sunning ourselves is one thing. This? It’s a whole new ball game.”
“You’re right.” Carl stood, holding out his hand, hauling Caroline to her feet. Impulsively she kissed him. “Thanks, Carl. You’re the best brother in the world.” She bent and picked up her robe, then took Carl’s hand and led him inside. “My bedroom, I think. My bed’s bigger.”
In Caroline’s bedroom she hung her robe up, then bent to a dresser drawer, burrowing beneath bras and panties and removing something long wrapped in a thin towel. She unwrapped it and brandished a luridly lime-green dildo. “Meet Jimmy Two,” she giggled. She fixed Carl with a look. “You first. I won’t be able to concentrate on you if I’m playing with this.”
“Okay. Where? On the bed.”