Walking through the back door after his golf game, Chris was amazed at how quiet the house was on a Saturday afternoon. "Wow, this is different!" he thought as he grabbed a beer from the fridge and headed for the living room. He half expected his wife to be sitting there reading; but the room was empty. He downed half his Corona in a few swallows, but when he turned to go upstairs something caught his attention. One of Annie's bras was lying on the coffee table. "That's a little odd," he said out loud, but Chris just shrugged and went upstairs.
Cassie's door was partially open. As he passed he glanced inside and froze; his daughter appeared to be asleep. That wasn't what froze him though; she was topless! It was fortunate that her lower half was covered with the sheet, and she was lying on her side facing away from him. Still, she was clearly naked from the waist up. He pulled the door shut and went to his room. Annie was also asleep in bed; considering that he had just seen her bra downstairs it was reasonable to assume she was naked also. Shaking his head, Chris thought, "What the hell happened here today?"
He got undressed, tossed his sweaty clothes in the hamper, and started the shower. As the water warmed up, a funny thought was running through his head. A couple months ago, he would not have given these circumstances a second thought; but now? "Let's see, two classmates of Cassie's come over to discuss a school project, and...hmmm...Oh my FUCKING GOD!" The way things were going, something sexual must have happened; no doubt about it!
Chris started lathering up; the water felt great and just as he was soaping his cock, he felt a hand on his ass. Annie cooed in his ear, "Need some help with that?" She was nude and had sneaked in behind him. "So how was your golf game today?"
"Hi Beautiful! Pretty good cuz I won by three shots; but to tell you the truth, I'm way more interested in what my little adventurer and our daughter have been up to today!"
Annie started running her hands over Chris's soapy body. She stroked his rapidly hardening dick, "What do you mean?" She said it innocently, but he saw the twinkle in her eye!"
Chris chuckled, "Why would your bra be lying in the middle of the coffee table?"
Annie's eyebrows shot up, "Uhh...maybe it fell off accidentally?"
"Yeah, maybe it did!" he replied with a smirk. "Or maybe something happened that I would love to know about?"
She laughed, "Well, let's see..." she turned him around so he could face the wall. Chris's dick was steel-hard now and she wrapped her hand around it and began a slow-motion jacking.
Ten seconds of that and he reached for the wall to brace himself. "Holy FUCK, that feel's good!"
"Do you want to hear what happened now or after I finish you off?"
"Now please...but don't stop!" So, she stroked him...concentrating on the sensitive parts of his rod that she knew so well. Trying to make a long story short, she told him about the encounter and how they lured Carla into stripping. Chris was groaning now, and Annie reached her other hand between his legs to tickle the underside of his scrotum. His head was dropping and she could hear him groaning, "Ohh Goddd, yesss!"
As she got to the part about Carla eating her pussy and Robbi fucking Cassie, Chris cried out and lost it, shooting his load all over the wall in front of him! "Wheww," said Annie! "That was a good one huh?" Chris didn't answer; he just turned, grabbed her, and pulled her under the water with him. They stayed in there until the water started running cold!
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The rest of the week was rather uneventful. That, of course, didn't mean there was no sex; just that the fucking was like it "used to be." To describe the encounters they had in one sentence was easy. On Tuesday morning Chris pounded her doggie; and on Thursday afternoon (Chris came home early because both of the kids were at school until later,) she rode him reverse cowgirl until her arm strength gave out!
That night she had a fun Skype conversation with Joyce, "Is it me? I feel like I'm more orgasmic than ever! This afternoon I must have had at least six of them."
Joyce nodded, "Sweetie, orgasms are like candy...or maybe chocolate...the more you eat the more you crave!"
"It must be true! Maybe my hormones are changing too!"
"If that's true, consider yourself lucky! Sometimes hormones go the wrong way." They chatted some more about that, but then the conversation shifted when Joyce asked, "Speaking of orgasms, what was this Melanie was telling me about you, Cassie, and her new friends?"
"You mean their class project?"
Joyce laughed, "Yes, you might call what you did a 'project!' Mellie said you orchestrated a four-way with those young hotties!"
"I guess you could say that!"
There was a moment of silence as Joyce stared at her; then she smiled, "I'm so proud of myself, I've created a 'fucking' monster!"
Annie giggled, "I would have stayed out of it, but Cassie's new friends are sexy little vixens! I couldn't help myself!"
"Did you know that the our daughters are meeting them on Saturday morning? Ostensibly it's for spending the day on their projects."
"Well, Cassie's not home yet. I think they started on that after school; they're at the library right now."
"Yes, they are; they're gathering research. Mel says they'll use Saturday putting it together."
"Do you think something else might happen?"
Joyce cocked her head, "What did you call them? Vixens?"
Annie shrugged, "Perhaps in the middle of their work...they'll need a break of some kind."
That made Joyce giggle, "I think we are somewhat responsible for our daughters' behavior, right?"
"Uhh, Hmm, maybe! I'm not so sure the word "vixen" applies to Cassie."
"Tell you what, forget the labels; let's just say they enjoy their fun like we do!"
At that moment Chris called her from the bottom of the stairs; Annie said, "I have to go, let's compare notes after this Saturday. We should get the story pretty quick from the girls."
"I have a date Saturday night; Sunday?"
"Talk at you then!"
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On both Thursday and Friday nights Cassie got home around 9:30 because all four girls were at the library researching their reports. Cassie and Robbi's project was on the causes of World War II, and Melanie and Carla had selected the globalization of the British Empire. When Cass got home on Thursday night, she told her parents how impressed she was with Robbi and Carla's ability to flesh out the main points of the topics. She and Melanie took the notes while their partners scoured the books and other media.
"The way they go about things is awesome," said Cassie, "it'll really be helpful when I get to college! I wish I had learned some of these techniques when I was a freshman!"