Then she pulled her lips off his fat cock-knob, and shifting her head around, she used her nimble tongue to gather up the stray spunk from his lower prick and balls.

Rachel, watching this, took the rubber cock out of her lips and emulated her daughter's performance, licking up and down the slimy cockshaft.

Her naughty kids were already into incest, the horny housewife was thinking.

They were already corrupted and depraved.

Why shouldn't she take advantage of it?

She fully intended to, all of her inhibitions melted in the heat of her desire, her maternal instincts overwhelmed by carnal lust.

But she knew it would be better to involve herself in the relationship gradually, working up to rather slowly, than to just announce her presence out of the blue. She didn't want to shock or embarrass the kids.

She knew that the teenagers were so randy today because they had listened when their mother and father were fucking that morning.

If they liked to spy, Rachel was damned well going to give them something to spy on – and plenty of it.

But, for now, she was content to play the peeper herself, as the second act began to unfold.

Frostie licked down into her sibling's groin, worked around his balls and slurped back up his cock. She took the bulging prickhead into her lips again.

His virile cumbags were already starting to balloon with another cum-load.

He frigged in and out of her lips.

It seemed as if his cum-hungry sister were going to milk him off again.

But, as much as she adored a mouthful of cock and a bellyful of jizz, Frostie was ready to get her own rocks off by this time.

Her greedy mouth was sated – sort of – but her pussy was steaming for some attention.

She sucked a bit longer, screwing her mouth down on his prick. Then she drew away. She had polished his cock-knob to a purple luster. It was gleaming atop his elongated prick like a wet gemstone.