"Okay, honey," she giggled as she released his hard cock from her mouth and crawled out from under him. "Now it's time to fuck."

Crouching on her hands and knees, the horny youngster began wriggling her sweet young ass around in front of his nose.

"Can you show the dumb bastard what to do?" she complained to her brother as the goat sniffed and licked at her bare ass without trying to mount her.

"Come on, goat," urged Kirk, lifting the animal up onto his sister's back. "Fuck her hot little cunt."

When the stupid goat didn't move, Kirk gently grasped the animal's hard cock and brushed his sensitive prick-head between Marci's hotly oozing cunt-lips.

"Come on, dummy," he whispered. "Stick, your cock in her."

Feeling the heavenly heat of Marci's juicy cunt against his throbbing hard-on, the big billy goat instinctively lunged forward.

"Ooooooh! Eeeeeeggghhh!" the youngster screamed when the animal's hard cock speared through her hymen. "There goes my cherry!"

The momentary pain only lasted briefly, and once his prick was buried in the snug confines of her cute little unused pussy, she felt a deliciously warm glow spread throughout her body.

With his horns held high and his brown eyes glazed with lust, the handsome, big billy goat began fucking his cock into her with blinding speed.

"Oooooh, shit!" little Marci squealed with joy as the lusting animal further increased the tempo of his rapid thrusts.

The blonde's sweet young tits were jiggling like crazy as the big goat fucked her crouching body. He was practically knocking the breath out of her every time his hard boner fucked into her cunt.

"Yes! Yes!" the girl squealed. "Fuck my cunt!"

Excitedly watching, Kirk could see how much his little sister was enjoying her first fuck even if it was with a goat.