Sam smiled to his mother, continuing to lick her asshole for a few more moments before standing up. He rubbed his hard cock against Carmen's ass, smiling as he lubed himself up with some body moisturizer, like she had told him. Slowly, he pushed his large cock into Carmen's ass, gripping her hips as she thrust into Rachel, his cock slowly pushing inside his mother's ass...he didn't have to move, she was already doing it for him, moving back and forth on his large cock while thrusting into Rachel. Sam smiled, bringing his hand up and then down, smacking his mother's buttocks with a nice 'crack!', before beginning to thrust into her himself as she thrust in and out of Rachel. "Mm...You're always so tight, mom..." Sam said with a soft moan, thrusting harder into her.