My mom, apparently sensing this herself after years of experience fucking my dad, got off me and dutifully got down on her knees—right in front of m... dad. I knew what this meant, so I got up off the couch and stood in front of her, inserting my cock in her mouth. She started to heartily suck. And the surreal feeling of my hot mom hungrily sucking my cock with her big bouncing tits in front of me made me cum right away, groaning fiercely loud. It was like an oral creampie as I shot my warm load. "Aaaaaarrrrggghghhhhh." he grunted as three thick waves of his warm spunk flooded her cunt. Desperate for an orgasm she continued to quickly ride his cock and played with herself, but it was hopeless as his old, wrinkled cock quickly shrivelled into a lifeless and flaccid state. His hands and mouth had also deserted her amazing body, as the pensioner was gasping for breath, coming down from his orgasm. Realising the pensioner was done, Tiffany slapped his shoulders with her hands and angrily. . good."I looked back down and her once 2 inch long flaccid penis was now 4 solid hard inches. Although i was still soft it was a strange sight, both of our genitalia matched in sizes next to each other. My head pressing firmly against her body and her head against mine."This feels good when it's hard. I want you to fuck me. Now." She commanded.She laid down on the bed and spread her legs. She lifted her small penis up and parted the large saggy labia of her pussy as a guesture for me to just. Instead it was the shapely, thirteen year old half-sister to Susan's baby boy. He looked over her bare shoulder at the bedside clock and saw that it was one in the morning."Are you awake, Coleen?" Mmm hmmm ... and I can feel that you are too," she replied with a sexy wriggle of her bottom against the intruding fleshpole. Throwing off the covers she sat up on the bed beside him.At thirteen, she was already well developed and the man could sense that she would only get better as she grew older..