If you're looking just for the sex scenes skip to Chapter 5. Chapter 4 is all about plot and character development. I would like to think that Chapter 5 is hot enough to make Chapter 4 worth reading anyway.
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Chapter 4: The Secret Comes Out
While Stanley and Sarah were talking in the basement Tina and her mother were having a very different conversation upstairs in the kitchen. As they sat at the kitchen table Tina had explained her little plan to "educate" Sarah.
"Tina," Angela asked, "Don't you think that, after the schtuping she just got from Stanley, Sarah may not want to go back to Biff?"
"I'm counting on it, Mom," said Tina with a smirk.
"That's not your decision to make, young lady," Angela said sternly.
"Mom," said Tina defensively, "He treats her like crap. She deserves better."
"That's still not your decision to make, Tina," Angela shot back, "She has to figure that out for herself."
"So how is it going to hurt," said Tina, "to give her some additional information to help her draw a conclusion?"
"Still," Angela answered, "one of these days your meddling is going to get you into big trouble."
Changing the subject the mother asked, "Do you want some coffee? I'm about to make a pot."
"No thanks," said Tina, "I never did understand how you can drink coffee this late in the day and still get to sleep at night."
"I still have blood in my caffeine stream," said Angela as she opened the cabinet and reached for the coffee can.
She hummed as she worked. It occurred to Tina that it been a long time since she had heard her mother humming in the kitchen. Angela had taken her husband's sudden departure pretty hard. Angela had dragged herself around the house sullenly for nearly a year. But, in the last couple of weeks Tina had noticed that her mother was returning to her old self. There was a spring in her step. Her sharp sense of humor was returning. She was dressing to show off her body again. One possible explanation suddenly dawned on Tina. She figured that it couldn't hurt to ask.
"So, Mom," Tina said, "who's the lucky guy?"
Angela almost dropped the coffee can. Regaining her composure she said, "What are you talking about?"
"Oh, come on, Mom," said Tina, "You can't fool me. Ever since Dad took off you've been grumping around the house. But, in the last two weeks or so you've been smiling, joking, and humming like you used to. You've got your old confidence back. You're showing all the signs of a woman who's getting it good and getting it regularly. So, who's the guy?"
"I don't think that's any of your business, young lady," Angela said stiffly.
Tina looked puzzled and said, "I don't get it. We've always been open about sexual things before. Why is it different this time?"
"I'm entitled to some privacy," said Angela, "Just because you enjoy bragging about you sex life doesn't mean that everybody does."
"Oh, puh-LEEZE!" Tina exclaimed, rolling her eyes, "Gimme a break, Mom. Where do you think I got that from? You've given me a blow by blow description of almost every guy you've fucked since you lost your virginity in the seventh grade."
"Eighth grade," Angela corrected.
"Whatever," said Tina, "You've even given me some pretty detailed descriptions of your early years with Dad. Why can't you tell me about this one?"
"I just don't want to talk about it. That's all," Angela said she started scooping coffee into the basket of the drip maker.
"I don't see why..." Tina stopped and her eyes went wide as a horrible thought hit her. "Oh. Mom," she said fearfully, "he's not married. Is he?"
"Don't be ridiculous!" Angela shouted angrily, "How could you even think such a thing after what I've been through?"
"I've been through it , too, you know," said Tina sullenly.
Angela took a deep breath and said softly, "I know. I'm sorry. This hasn't been easy on you either."
"Why can't you tell me?" Tina asked sounding worried.
"It's complicated," said Angela in almost a whisper.
"Mom," said Tina earnestly, "you once to me that things are only as complicated as we make them. You're starting to worry me."
Angela stood silently looking at her daughter. Tina was so much like she had been at that same age. She was trying to help and Angela knew that, at some point, she and Stanley were going to have own up to their affair.
"Is it someone I know?" Tina asked, "If it is, that's not a problem, even if it's Stanley."
Angela dropped the full coffee scoop from her hand spilling grounds all over the counter.
Tina's eyes went wide again. This time she was smiling. She was sure that she had just figured out what was going on.
"It is. Isn't it?" she said.
"It is what?" said Angela pretty much knowing what was coming.
"It's Stanley!" Tina exclaimed. "You're getting a regular dicking from Stanley!"
"Maybe a little," said Angela sheepishly.
"Mom, there's nothing little about Stanley," said Tina.
Angela smirked and said, "You said a mouthful," then after a pause added, "so to speak."
"Sorry," Angela continued, "bad choice of words."
"Actually, it was almost perfect," said Tina laughed, "Except that he's way more than a mouthful."
"You've got that right," said Angela sharing in the mirth.
Angela finished cleaning up the spilled grounds, poured water into the drip maker, pushed the start button, and joined her daughter at the kitchen table.
"So, why did you think that you couldn't tell me?" Tina asked.
"We weren't sure how you'd take it," Angela answered.
"Mom," said Tina, "I love Stanley. He's been my best friend and has been for a long time. But, I'm not in love with him. I don't have any exclusive ties on him. I mean, what we were just doing in the basement with Sarah should prove that."
"I know, dear," said Angela seriously, "But, it's a different sort of thing to find out that your best friend is doing your mother. That's what we weren't sure about."
Tina thought about what her mother had said for a moment then said quietly, "That makes sense. You're right. That's a different thing. I still don't have a problem with it"
"You're not mad?" Angela asked.
"About you fucking Stanley? No. About you not telling me? A little. But, I'll get over it," said Tina with a smile.
"We really didn't intend for it to happen, you know," Angela said.
"You don't have to defend yourself, Mom. It's all cool," said Tina, "Truth to tell, you were getting so down in the dumps I was half thinking of trying to set you two up anyway."
"Well, I'm glad we dodged that bullet," said Angela as she arched one eyebrow.
"What's that supposed to mean?" Tina asked defensively.
"It means that you have got to stop meddling in people's lives, young lady," Angela said sternly.
"Mom, can we talk about this later?" Tina whined, "How did it start with Stanley?"
"Innocently enough, I guess," said Angela.