Burt had his hands around Sissy's waist, his hands cupping her small, but succulently firm tits. Sissy's cunt was stretched wide by his thick cock as it plunged in and out of her cunt.
Susan gazed at them, seeing the boy's balls dangle between his legs as his cock slithered in and out of Sissy's wet, hot pussy! The girl was mewling with the pleasure of being fucked, and one of her hands was twisting at her hard clit as the boy's cock thrust up and down.
Susan could see the tightly stretched lips of her daughter's cunt as they gripped Burt's hard, throbbing prick. Her legs began to tremble as she watched with hot eyes, and she had to lean against the door-jamb. One hand went to a spongy tit, her fingers digging into it. Her other hand smashed against her cunt through her dress and panties, the pressure against her throbbing clit making her moan softly.
Sissy's slim hips moved up and down as she bounced slowly on Burt's cock, soft whimpers of pleasure bursting from her month. Her eyes were closed as her cunt rode up and down the boy's cock, her expression one of sweet ecstasy.
Susan knew well what her daughter was feeling. She felt as if the stretching of her pussy by Burt's cock had been transmitted to her own, and there was a deep throbbing sweetness in her cunt.
"Oooo, Burt," Sissy gasped. "That's so fucking good! I love fucking, Burt! Ohhh, I want all your cock up my cunt, Burt!"
Susan saw her daughter's hip gyrations speed up as she churned swiftly on his prick. Her tight cunt held his cock wetly, sliding up and down on it. His hands were on her hips, digging into them as she twisted and turned her naked, sweet ass up and down.
Susan had been thinking about seeing teenagers fucking, and now she got her wish. It was as exciting as she knew it would be; somehow different than when Sissy and Jay fucked, perhaps because a different cock was plunging in and out of her daughter's hot, slippery cunt. Perhaps it was the fact that their little group of fuck games was increasing, and perhaps it was because Gary and Burt were the brothers of Judy. Perhaps it was incest that made it so exciting – incest between her and Jay and Sissy, and incest between the lovely little girl and her two eager brothers.
Leaning against the jamb, Susan watched her daughter's tight cunt ride up and down Burt's surprisingly thick cock. She pressed harder against her burning clit and dug into her tit until she almost bruised her tender tit flesh.
Susan knew her daughter was about to explode with a tremendous orgasm. She saw it in the way her small, sweet tits swelled; the way her creamy flesh flushed and the jerky motions of her pussy.
A sudden wail of intense ecstasy burst from Sissy's mouth and her small body went stiff. Then she began to shudder as her cunt ground down onto Burt's cock.
Susan was sure she could see the girl's cunt convulsing around the boy's prick, and her eyes burned as she strained to see his balls come up tight against the base of his cock. She heard him grunt.
Susan knew her daughter's pussy was being filled with the boy's thick, sweet fuck juice. Oddly enough, neither Sissy nor Burt looked in her direction. She was out in the open and could easily be seen by them. Yet, as Sissy lifted her cunt from Burt's cock, they did not see her. She saw the thick fuck juice seeping from her daughter's cunt as she slumped on the couch, her slim legs spread wide and her pussy exposed.
Susan had not realized she had shoved her hand inside her blouse and was gripping one swollen tit, or that she had pressed her skirt between her thighs and was cupping her pussy. She felt an overwhelming urge to enter the room and fall to her knees in front of Burt, taking his glistening cock into her mouth and sucking it furiously, bringing more of his thick cum up and into her mouth. Somehow, she managed to control her desire.
Within a few moments, Sissy, without a word, leaned over Burt's lap and ran her tongue up and down his wet cock. Seeing this sent Susan's cunt into a series of orgasms, and she had to swallow a moan. She watched as the girl sucked the head of his cock into her mouth, drawing one of her feet up onto the cushions of the couch, spreading her knees wide and rubbing at her clit as she mouthed his cock. She took his cock deeply into her mouth, her cheeks working as she sucked it.
Burt's cock began to swell into hardness as Sissy sucked it up and down. As his prick grew, her lips stretched. Soft gurgles escaped the girl and again, Susan knew the pleasure her daughter was getting. She licked at her own lips as her mouth watered for Burt's cock.
Susan saw something move and she turned her head and saw Judy come from the hallway leading to the bedrooms. Judy wore a pair of panties and nothing else.
Susan became hotter as she saw Judy stand for a moment, while Sissy sucked her brother's cock. Then she sat next to him. While Sissy sucked on his prick, Judy began to fondle his balls. He draped an arm over her shoulders and played with one of her firm tits.
"Let me suck your cock," Judy said, leaning down as Sissy moved away.
Susan watched as the girl took her brother's throbbing cock into her mouth, and Sissy's eyes were glassy as she watched only inches away.
Judy sucked every inch of her brother's cock into her mouth, then began to bob her pretty face up and down his prick-shaft swiftly, making squealing sounds of delight. Then Judy drew her mouth off Burt's prick. "I wanna fuck your cock now!" she said in a hot voice. "It's my turn to fuck Burt, Sissy!"
Susan watched as the pretty girl swung her legs over her brother's lap and settled upon his hard cock in the same fucking position Sissy had been in.
Susan stared as Judy parted the lips of her cunt with both hands, then sank down on her brother's thick prick.
The girl mewled as her pussy was filled with prick. Once she had her brother's cock inside her cunt, she began to bounce up and down.
Burt reached around his sister's hips and began to rub at her tiny clit, making her mewl even louder.
Sissy slipped from the couch and sat on her heels between Burt's legs. Susan watched as she leaned her face closer. Then her tongue licked out and traced a wet pattern around the boy's dangling balls.
Judy had lowered her gaze so she could watch Sissy lick her brother's balls, and her little ass began to churn furiously.
"Suck his balls, Sissy!" Judy growled. "Suck on my brother's balls while I fuck his cock!"
Sissy opened her mouth and took one of Burt's balls. Again, she ran her tongue over her lips hungrily as she watched. Seeing the two extremely pretty young girls fucking and sucking this boy was intensely exciting to her. Watching Judy's slippery cunt sliding up and down on Burt's cock as Sissy sucked his balls sent a shiver of pleasure up and down her spine.
Sissy sucked on Burt's balls in a hungry way, making gurgling sounds. Her eyes were wide as she watched Judy's cunt moving up and down his cock only an inch or so away. Then she released his balls, and lapped her tongue around them. Her wet tongue tickled Judy's clit, then licked Burt's cock as Judy lifted upwards.
"Lick me, too!" Judy urged in a hot, excited voice. "Ohhh, Sissy! Lick my cunt while I fuck Burt! Lick my cunt and his cock at the same time! Oooo, that sure looks good! I'm gonna try that next!"
Burt was grunting as his sister fucked up and down his prick with her tight, wet cunt. He nearly shot his load when he felt Sissy's tongue running hotly around his balls and up his slippery cock.
Susan saw him trying to peek past his sister's shaking body – trying to watch what Sissy was doing.
Susan wasn't sure she could stand there much longer, watching the teenagers fuck. She was very weak from the series of orgasms burning through her cunt, and her clit was aching now from the tight grip she had on it. Seeing the two girls and boy fucking and sucking was thrilling to her.