Edith went into the house after her husband and granddaughter had left. She couldn't believe how hot it had made her to see them fucking on the kitchen table. Too bad she couldn't hear what they'd said. She wondered if it was their first time or not. She'd known it was coming, this sexual thing between John and Carissa. As she washed and put away the vegetables she'd harvested that morning, she thought back to all the times Carissa had stayed with them, and how much attention John had paid her.
The way he acted with Carissa reminded Edith of how her Dad had been with her when she was a young woman, and what had developed between them. She'd had such a special relationship with her daddy, a relationship that had carried on even into her married years, that she didn't begrudge Carissa the same thing. She suspected that John had some of the same feelings for their own daughter, Carissa's mom, Judith, but she didn't think he'd ever acted on them.
She wondered if John had considered that Carissa might become pregnant. She thought immediately of their physician, Dr. James Daily, who was retired now, but had been their family doctor for years. Maybe he would see Carissa and get her on some birth control. At one point early in her marriage, she had confessed to Dr. Daily about her sexual relationship with her father, worried about the possible consequences of her action, but not wanting to give up the wonderful sex she experienced with him. Not that John hadn't been a good lover, but the illicitness of fucking her own Dad brought an intensity to their lovemaking that was missing with John. Dr. Daily assured her that her confession was confidential, and that what she was doing was really quite normal. He told her that incest occurred much more frequently than most people suspected, and that many of those involved felt it was one of their most satisfying sexual relationships.
She had been greatly relieved to hear all of it, and during her subsequent gynecological exam, Dr. Daily had questioned her further about the things she and her Dad did during sex. After a point, she realized that he was trying to arouse her, and by the time she realized it, he had accomplished his goal. As she lay back on the exam table naked, with her legs in the stirrups, she also realized he was doing much more than giving her an exam, he was trying to make her have an orgasm. The intensity of her arousal overcame any thought of resistance, and as she described how much she loved having her Daddy's cock inside her, she felt the doctor's penis pushing inside her tight, wet cunt. He continued to question her, using his fingers to tug at her erect nipples while he fucked her with strong, quick strokes. In a matter of minutes, they both came, and she couldn't believe that she'd actually let her doctor have sex with her, or that she'd enjoyed it so much.
Still, she was embarrassed, and began to think maybe she needed to find another doctor. She quickly dressed as he wrote on her chart, glancing up to watch her as she struggled to get her clothes on. He gave her a prescription for a diaphragm so she could avoid getting pregnant until she wanted to, and as she was leaving he reiterated how glad he was that she'd felt comfortable confiding in him, and that so long as she was his patient her secret was safe. She didn't realize until she was on her way home, that he'd basically threatened her with telling her secret if she changed doctors. At first she was upset, but the more she thought about it, Edith decided that maybe it wasn't so bad. Their sexual encounter had really turned her on, and maybe it wouldn't be so bad to keep going to Dr. Daily.
Their relationship had continued up until his retirement about 5 years ago. He had switched her to a twice-a-year exam, rather than the usual once a year, and had taken to scheduling her appointments in the evening. John had never suspected a thing!
She thought of Dr. Daily now, in light of what was going on between John and Carissa, because she knew her granddaughter needed to be on birth control. She also knew that Dr. Daily would keep their secret. She'd call him right away and set up an appointment for Carissa, and she'd make John take her. That should be fun! She was looking forward to the little games she could play in furthering John and Carissa's sexual adventures! And they'd never know she was doing anything!
Later that night, after John came back to their bedroom from tucking in Carissa, Edith broached the subject of the doctor's appointment.
"John, I set up an appointment for Carissa with Dr. Daily. At her age, and especially with her looks, she really needs to be on birth control, don't you think?" She phrased it as a question so he wouldn't think she suspected anything. That always worked with him. "I thought he was retired?" John responded. "But you're right about the birth control." He tried to hide the surprise and worry from his face. My God, he'd never even thought about the fact that he might have gotten her pregnant!
"He is retired," Edith answered, "but I called him and he agreed to see her. I told him we wanted it to be confidential and discreet. We don't want it getting out that our single granddaughter needs birth control. The ladies at the church would have a hey day with that! Anyway, he said he could see her tomorrow afternoon at 2:00. I need you to take her because I have a meeting at the church, and I don't think she should go alone. Don't tell her what it's for, just tell her she needs a checkup. Dr. Daily said he'd give her one of those shots for birth control. They last for six months, and that way she won't even know she's on anything."
"Sounds like a good idea," John said thoughtfully. "She might become promiscuous if she realized she couldn't get pregnant, and we wouldn't want that," he explained, trying to cover his tracks and not let Edith know anything was going on between he and Carissa.