Jealous sister... and a competitive daughter.

Kim stood just outside the bathroom hidden in the closet. The sound of her mother and sister going at it in full **** had drawn her in, and the sight and sounds of her mother impregating Alice had stirred up so many emotions.

Jealousy from not being chosen to bear her mother's child.

Anger that she wasn't the one knocking up Alice.

Fear that Alice might become the new favorite if she does get pregnant from that.

Lust from the cacophony of moans, groans, and slapping noises from their performance.

Kim tensed as her mother swaggered from the bathroom dripping water everywhere, and so caught up in the afterglow of mating with her daughter to care. "Cunt." She breathed once she was sure that her mother was out of earshot.

Alice then stumbled out of the bathroom, but as she staggered past Kim saw cum draining down her little sister's legs. In one swift motion she slid the door open and pulled her little sister in. Kim took her own damp panties and shoved them in Alice's mouth to cut off her protests. "I am not going to let that cow have the satisfaction of knocking you up! It's me having her babies or no one!"

Kim's cock slammed into her sister so violently that her sister cried out in pain through the drenched panties shoved in her mouth. She gripped one of the shelves and braced herself as her older sister started to thrust into her. Each thrust **** some of her mother's semen out of her to pool on the floor.

It didn't take long before Kim pushed in the full length of her shaft and started to shoot every last drop she had into her little sister. "I'll be back tomorrow to make sure its my child growing in there..."