Bob looked at his sister's tormented face. "You want him to come in your cunt?" he asked.

"I don't care!" Pamie screamed as her cunt went into powerful convulsions. "I don't care! I just want you to come, too, Bob!"

Susan felt her daughter's orgasm. The contractions caused that small asshole to grip reflexively on her tongue. It grew so tight, she couldn't plunge her tongue in and out. Pamie screamed and screamed with hot, burning ecstasy as she came.

Bob, however, didn't get the message quick enough. As his cock started to throb with impending discharge, he jerked free of his sister's convulsing cunt just in time. He yelped he came. Susan, with her tongue up her daughter's whole, felt the boiling splash of his come juice on her chin. She squealed, yanking her tongue out of Pamie's gripping asshole just in time to close her lips about the head of Bob's cock to taste the second spurt of come juice. She swallowed quickly, and began racing her tight lips up and down his cock as he spewed. There was a slight difference to the taste of his come juice this time, and it took her a moment to understand why.

She was tasting the thick juice of her daughter's cunt along with his come juice. She moaned and sucked as hard as she could, driving her lips to the very base, and pulling her tight lips upward, sucking the come juice from his writhing balls. Just in front of her eyes was Pamie's cunt, visibly twitching, very juicy.

Bob still held her sister's asscheeks, flooding his mother's mouth, unloading a thick, creamy gush down her throat. Susan gripped Billy's cock, but she wasn't jacking him. All her senses were attuned to sucking the come juice out of Bob's balls, loving the way it burned down her throat. She stared in glazed fascination at her daughter's quivering, wet cunt, but clung to Bob's cock until he could no longer come. She ran her tongue over his piss hole, licking up the last bead of come juice.