The feel of Kirk's big, human cock fucking in and out of her snug little cunt was driving the horny goat wild. The animal's entire body was tingling from the delicious bigness of his hard prick.

Marci had never seen anything so erotic as her brother fucking his thick, slippery cock in and out of the goat's girl-like pussy. Naturally the youngster had never seen anyone fucking before, and this lewd action was almost blowing her mind.

At first Marci had wondered how her brother could possibly enjoy fucking a goat, but seeing the ecstasy on his face, she realized how much pleasure he was getting from the goat-fuck.

"That's it, Kirk!" the little blonde squealed with joy. "Just fuck her silly!"

Wishing her big brother's cock was zipping in and out of her hot little cunt, Marci was vigorously rubbing her pussy through the material of her jeans. Becoming more aroused by the second, the youngster pulled her zipper down and wormed her finger through the leg opening of her panties, drilling it into the slick hotness of her itching, dripping little cunt. Excitedly rubbing her erect clitty, Marci stared at her brother's hard cock fucking in and out of the goat's juicy cunt.

"Oh, yes, Kirk!" she squealed. "Fuck her good!"

Excitedly watching, Marci could see that her brother was fucking the wild-eyed goat for all he was worth, his panting mouth gaping open as he stared crazily ahead of him. She could see the juicy pink lips of the animal's frothy pussy sucking and pulling on the slippery length of his thick prick as he wildly fucked in and out of her steaming pussy. His virile young cock-shaft was glistening with the creamy juice that was oozing out from between the goat's squeezing cunt-lips.

Frantically fingering her own swollen clitty, Marci was staring at the goat's juicy little cunt as the goat-pussy squeezed and sucked on her brother's hard boner. The goat's pussy-lips had swollen and turned a dark pink from the delicious friction of his torrid cock.