Sylvia pursed her lips, slurping in the swollen, wet clit. Jill shuddered and dug her fingers into her neck again, humping rapidly now, fucking her throbbing pussy on Sylvia's mouth. Sylvia kept her mouth glued to Jill's clit nubbin, sucking it gently but forcefully, now straightening two fingers to goosh them into the narrow, clasping interior of her blonde sister's cunt.

"Suck it harder!" Jill whined. "Oh, fuck, I'm horny! I like it to get sucked hard!"

Sylvia did as her nympho sister asked, sucking very hard on the swollen, aching nubbin, slurping the clit between her lips. Feverishly she banged her fingers in and out of Jill's throbbing fuck-hole, marveling at the tightness of her sister's horny cunt. Jill's whole body trembled, bucking and wiggling as the cum mounted deep inside her loins.

"Ahhhh, shit, that's goood!" Jill gasped. "Unh, fuck! Oh, fucking shit! Oh, that's right, suck it, suck it good, I'm gonna cum now! Awwwnnhhhh! Cuming! Suck my clitty! Awwww, cuummmiinnnggggg!"

A heavy stream of fuck-juice flowed out of the naked blonde's pussy, coating the fingers that kept pumping wildly in and out of her exquisitely-tight cunt. Sylvia kept her lips around the throbbing, cumming clit sucking it hard, lapping it with her tongue. Jill clawed the back of her neck hard enough to draw blood, moaning and crying as the cum pounded again and again through her cunt. Finally a wanton, satisfied smile spread across her face. She hopped off the couch and again knelt on the floor before her big sister's legs.

"Now don't you feel a whole lot better?" Jill said. "I told you you'd like licking my pussy, didn't I?"

"You're… you're not going to seduce my Tony, are you?" Sylvia panted. She felt ashamed and horny, painfully conscious of the taste of cunt in her mouth, and the way the throbbing fuck-need persisted between her legs. "I mean it, Jill. You keep your dirty hands to yourself while my son is staying here."