Keri was mesmerized by the sight. She had to admit that Susan was a beautiful woman. She was nearly as tall as Keri's dad, with big firm tits, a flat tummy and a nice rounded ass that a lot of younger women would love to have. Even her face looked much younger than her thirty-seven years.

"God, Susan, your pussy is so tight!" Keri heard her dad say as he raised his head to look into Susan's eyes. "I've never had a pussy this tight before."

"That's because your cock is so big, darling," Susan told him, arching her hips to take all of his cock. "When we get done, I'm going to lick your cock clean and then give you the best blowjob you've ever had in your life!"

"I'll hold you to that," her father said with a grin as he grabbed Susan's legs, bending her almost double as he raised himself up and began slamming his cock into her even harder and faster than before. Keri felt her own cunt flooding again and reached down to finger it as she watched in wide-eyed wonder the giant cock of her father working in and out of the red-haired cunt of Susan. Even though she couldn't see it clearly, what she could see sent shivers through her and made her heart pound. It also gave her second thoughts about fucking him. Even in the pale light of the moon coming through the window, his cock looked enormous. Yet, the more she watched, the more she wanted his cock and knew she wouldn't be happy until she had it inside of her.

She felt herself cumming again as Susan began to cry out in orgasmic pleasure at the fucking she was receiving from Keri's father. Keri had to bite down on her bottom lip to prevent herself from screaming as her own climax overtook her. She finally closed the door and made her way to the bathroom on legs that felt as if they were made out of rubber, vowing to herself that she would get her father to fuck her, that she would make him forget all about marrying Susan and bringing her into their house to live.