Sherry lost track of the number of times she fingered herself through that Tuesday and Wednesday while thinking of her son. When he called her on Wednesday night, they spent a long time talking and masturbating together, until they shared a mutual orgasm.

"Mom, I need more than just your voice," Eric said afterwards. "I miss you more than ever. I need to touch you."

"I miss you, too, baby," Sherry replied with a wistful sigh. Then her voice dropped to a reverent whisper. "I need your cock inside me, baby. So much." Even just talking to her son this way made her heart race with excitement.

"I don't think...