Marcie closed her eyes, sucking in a ragged breath through her flaring nostrils. Why was she feeling this way? Why was she turning on watching Kathy jerk and twitch under her pet's licking tongue?

"Mmmmm, Pardner, touch me down there… yeah, good boy," Kathy said breathlessly, her hands now holding the dog's proud head.

"She's fucking herself!" Marcie whispered as she watched Kathy take the German Shepherd's head and grip it tightly, rubbing its nose in and out, in and out of her drooling cunt.

It was awful! There was such a strange, wild look in Kathy's eyes as she did this. Her legs moved more widely apart while her brown hair flew in all directions. Marcie was holding tightly onto the molding, her fingernails sinking into the hard white enamel paint. The tips of her tits were so hard she thought they would break off as they rubbed against the smooth material of her white cotton blouse. Her cunt was moving, actually moving, the swelling cunt-lips folding over one another while her clit popped out from the surrounding pink pussy flesh. Her knees were knocking together while an odd, comforting glow spread over her flesh.

"Oh God, God, it's gonna happen… it's… it's gonna… uhhhhhh!"

Marcie put one hand to her mouth, pressing the fingertips to her lips as she watched Kathy fling her body back down onto the mattress. The girl's face contorted into a wincing expression of pain. Kathy kept crying out, beating her clenched fists against the mattress while screaming out the dog's name again and again.

Kathy was making odd, jerky fucking movements, her feet now flat against the bed, her knees bent fully forward. Her thighs were tensing, relaxing, then tightening again as she danced her ass off the bed and fed the licking dog her pussy. She was fucking Pardner's mouth, driving her pussy up against his maw while clawing and clutching at the wrinkled coverlet.