Kathy Andrews - Wild babysitter

The flush that flooded Kathy's face told him all he wanted to know. He laughed and moved to where his sister was. "We're gonna make you come again," he said, running his hand between his sister's thighs. Kathy could not stop herself from watching.

Cindy grabbed her brothe's cock and beat up and down on it with a tight fist. Robert grabbed at her puffy, almost hairless cunt, tickling his sister's hard clitoris and making her squeal with delight. He thrust a finger into her cunt and began to fuck it in and out. Cindy twisted and rolled her hips with pleasure, mewling softly as she stared at Kathy.

Kathy became hot as she watched Cindy's cunt being penetrated by her brother's finger! She could see the lips clinging to him as he finger fucked her, and she knew Cindy had a tight twat. As Robert finger fucked his sister and Cindy jacked on his cock, they talked about Kathy as if she weren't sitting there with them.

"I bet Kathy's cunt is about to come again," Robert said. "I bet she has a cunt as hot as yours, Cindy."

"Sure she does, silly," Cindy giggled. "You can tell because her nipples are hard."

Kathy's nipples were hard, all right. They were very hard and tingling and she wanted to touch them. But she was tied up. Her cunt, too, wanted to be touched, fondled, played with. Her pussy was twitching wildly again and she knew that if they kept this erotic play up she would come again.

"Wanna fuck?" Robert asked.

Kathy jerked her eyes from his finger sliding in and out of Cindy's cunt, thinking he was asking her if she wanted to fuck. But he was talking to his sister.

"Do you wanna fuck me, Robert?" Cindy teased.

"I'm hot as hell to fuck," Robert replied, pulling his finger from her grasping twat. "Come on, Cindy, let's fuck!"

He's going to do it, Kathy thought wildly. He's really going to fuck his sister! Oh, what am I going to do? Should I tell their parents when they get home? They'll have to untie me before then, surely.

Giggling in a lewd sound, Cindy sprawled back on the couch, spreading her slim legs wide. Kathy gazed between them, seeing the tendons stretch. Cindy's young cunt seemed to be throbbing.

Robert climbed onto the couch with his sister, his cock straining hard, pre-cum dripping from the swollen head. Kathy's eyes blurred as she saw Robert press the head of his cock into the slippery lips of Cindy's cunt.

"Ooooooh!" Cindy mewled as her brother's cock slipped up her cunt. "Oh, golly, golly that's good, Robert! Ahhhh! I love your cock in my cunt!"

Kathy's breathing increased hotly as she saw Robert's cock thrust all the way into Cindy's almost-hairless cunt. She saw his balls, slap against her creamy ass. Robert held himself up so Kathy could see, and she knew that they were making sure she saw it all. She could not help it when her own cunt throbbed, soaking her panties even more. She trembled with the steaming pleasure of watching them, wondering why it was all happening in the first place.

Robert's naked ass began to bounce up and down, and Kathy stared hotly at his cock as it stabbed in and out of his sister's cunt. Cindy wiggled her ass, thrusting her cunt up and down to meet him. She whimpered with the pleasure she felt, and her hands dug into his hips. She tossed her and ass about in a wildness that was transmitted to Kathy. Kathy had the odd sensation that she could feel Robert's cock driving deep into her own cunt and she knew she would come again in a short while.

"Oooooh, Robert!" Cindy gurgled. "Ooooh, it's so hard! Your cock is so hard inside my cunt! Golly, fuck my pussy, Robert! Fuck my cunt with your hard cock!"

Kathy was certain Cindy's words were intended to inflame her. If that was her purpose, then she was succeeding. Kathy's cunt was burning and throbbing and she could hardly stand it. Her clitoris was brushing the crotch of her panties and making it tingle until she thought she would go out of her mind.

She could hear the moist sounds Robert's cock made as it thrust in and out of Cindy's young, tight cunt. She found herself leaning forward to try and see better. The sounds increased her shivering sensations, and her eyes were wide open as she stared at them.

Cindy lifted her legs and closed them high about her brother's back, her naked little ass bouncing, her stomach, churning furiously. Kathy was able to see his cock thrusting into her cunt an inch above the tightness of Cindy's asshole. She saw Robert's balls beating at Cindy's tight, sweet ass cheeks, and her cunt throbbed hotter than ever. She knew she was going to come, and probably before they did.

Her tits were almost painful now, her nipples feeling as if they were going to burst. She did not know she was whimpering and moaning softly in desire, nor did she know that the expression in her dark eyes told of her inner desire to be fucked, too.

Robert's naked ass bunched up as he thrust hard into his sister's eager cunt. As he stabbed up and down, Cindy churned her hips violently, grinding her hairless cunt in a frenzy of ecstasy against him.

"Oh, golly, Robert!" Cindy squealed. "I'm about to come! Come with me, Robert! I wanta feel your cock coming up my cunt! Ooohhh, come in my pussy, Robert! I want it… want it coming in my hot cunt!"

Cindy wailed loudly, ramming her crotch up tight and grinding furiously as her brother increased the thrusts of his cock. Then Robert went stiff atop his sister, his cock deep inside the slippery heat of her pussy. He grunted and came.

Kathy was unaware that she, too, had grunted. Her cunt went into tight spasms that shook her body, making her pointed tits bob. She was straining against the ropes, her mouth open and her eyes glazed.

Robert pulled his cock free of his sister's tight cunt and sat up, looking at Kathy. Cindy, too, turned her head toward Kathy. Cindy continued to lie there, legs once again spread widely. Kathy saw her pink cunt twitching, the glistening of her brother's come juice seeping from it.

"Don't tell us you didn't come, Kathy," Robert said. "That would make anybody come."

Cindy giggled again, swung her legs off the couch and got to her feet. Again she cupped her hand between her legs. She came to Kathy and pulled her hand from her cunt. She smeared her brother's come juice on one of Kathy's pointed tits.

"You can have some, too," Cindy laughed. "Don't it feel good to have Robert's came juice on your legs and tits, Kathy?"

"Untie me, please!" Kathy whimpered. "Please, Cindy, untie me. I won't tell your parents. I promise."

Cindy looked at her brother. "You think we can trust her, Robert?"

Robert looked at the clock on the fireplace mantel. "We gotta let her go, Cindy. It's almost time for our parents to come home."

Cindy untied the ropes, and the first thing Kathy did was to shove her skirt down. Then she replaced her bra and buttoned her blouse. She walked into the kitchen and drank a huge glass of water. When she returned to the living room, she saw that Robert and Cindy had dressed. She sat on an over-stuffed chair, trying not to look at them. She was in turmoil of indecision.

She knew she should say something to their parents about what had happened, but some how she couldn't. She could not deny she had enjoyed herself. She decided she would remain quiet, but she would never again baby sit Robert and Cindy. She didn't trust them now. There was no telling what they would try next.

There was an undeniable attraction about the two, Kathy knew. There was something exciting about them, something erotic.

When their parents arrived, Robert and Cindy were like two well-behaved children. They said goodbye to Kathy politely when she left the house.

At her home, Kathy got out of the car and thanked their father for bringing her home. "They're very nice children, Mr. Haynes," Kathy said.

"Perhaps you'd like to stay with them again," Mr. Haynes replied. "Sitters are difficult to get, and Robert and Cindy seem to like you."