The only other prick that Susan had seen was Chuck's, and she was completely amazed at the bigness of her dad's cock. She couldn't seem to take her eyes away from the big blue veined prickshaft that was noisily fucking in and out of her sister's slippery little pussyhole. Not only was Susan amazed at the size of her father's cock, but she was strangely fascinated by the little hairy ball-sac that was swinging back and forth, slapping smartly against her sister's juicy smeared asscheeks.

"Oh, sweet Daddy!" she heard her sister squeal in an excited voice. "It feels so fucking good, Daddy! Oh, shit, how I love your big hard cock!"

"And how I love your tight little pussy," her father panted, fucking his prick deeper and harder into the youngster's sopping hot cunt.

"Just fuck it to me, Daddy!" cried the thoroughly aroused girl. "Give me all you've got!"

"Don't worry, baby!" gasped the man.

"Am I gonna get a nice hot cuntfull of cum?" she excitedly giggled.

"You better believe it," her father panted.

"You're gonna get a load you'll never forget." Susan was strangely aroused by the excitement in their passion-crazed voices, but she still couldn't understand how her father could possibly enjoy fucking his own daughter. There was something so depraved about it, yet Susan began wondering how a cock would feel in her own little cunt. From the ecstasy and joy on her older sister's face, it was obvious how fantastic fucking must feel.

"Oh, Daddy!" she heard Kelly cry as her sister slammed her naked loins up to meet every deep plunge of her dad's cock. "It feels so good, honey! It feels so fuckin' good I can hardly stand it, Daddy! Ooooooooh… I love it!"

Wondering what fucking felt like, Susan began rubbing her pussy more vigorously through the material of her jeans. Becoming more aroused by every passing moment, Susan pulled the zipper of her jeans down and wormed her finger through the leg opening of her panties, drilling her finger into the hot slickness of her little dripping, itching cunt-slit. Excitedly rubbing her erect clit, the youngster continued watching the erotic performance on the bed.