Not riding him yet, the girl exercised her cunt muscles. The inner rings fluttered and rippled as they ran up his cock, massaging his prick as if she had a mysterious hand inside her loins, frigging him off.

She could feel hot dollops of pre-cum spill into her cunt as his pisshole dribbled.

Chuck humped, but she maintained the passion so that he wasn't sliding in and out yet, but was simply heaving her up and down on his groin.

"Fuck, Sis! Ride my prick!"

Her torso twisted as she wound her seething cunt-tunnel around on his buried cock like a juicy nut on a bolt. Her tits swung and her ass churned.

Then she began to rise and fall on his prick. Chuck met her in counterpoint, stabbing up as she came down and dropping back as she rose up.

They were moving in perfect harmony – and moving faster with every stroke.

Rachel could hear Chuck's cock hiss into Frostie's fuck-tunnel and hear the girl's pussy squish as it clung with fierce suction to the sliding prick.

Her cunt-lips were pulling out on his cock as she pulled up, and his thick prick, came out glistening from her creamy cunt-slot. The friction was intense. Rachel was breathing in the fumes of hot cockmeat and creamy pussy.

She half expected to see smoke or steam drifting from her daughter's groin as the pace stepped up.

Although brother and sister had already cum once, in each other's ardent mouths, it was evident that this fucking was not going to be prolonged.

Rachel was hammering her rubber cock into her cunt, then nudging it up her shithole, then bringing the richly scented and flavored prick to her mouth for a suck.

How she wished that she were crouched down behind her girl's grinding ass, with her face shoved into their groins, licking and sucking cock and cunt together and drinking their cum in combination.