Author's Notes: This story involves elements of incest (step-siblings), lesbianism, group sex, bondage, and exhibitionism/voyeurism.
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And so as the summer came to an end and the fall semester started for the girls at the university, my relationships with my step-sister Kim, and her lesbian lover, Erica, had changed forever. Gone were the safe, pleasant, Sunday evening visits for dinner. Now replaced with a Saturday night stay-over that included a lot of 3-way sex. The two girls had insatiable appetites for sex and always wanted to try sex in different ways, and different places. We had sex in the bedroom. We had sex in the family room, often with porn videos on the television. We had sex in the shower. And we even had sex in the kitchen and dining area. I didn't know much about their intimate relationship before the recent events that include me, but I wondered how they had kept up such a sexual intensity without killing each other. For the most part I was only involved on Saturday nights and Sunday mornings, but even that wore me out for a few days.
As the girls were now spending one night each week living in my home, it was inevitable that they would want more of their stuff in my home. Simply put, they began moving in with me. And this would lead to changes around my home. After that first sleepover experience, we all realized that any snooping neighbors would see Kim's car in my driveway overnight and wonder about our activities. Kim and Erica, as a gay couple, were already sensitive to what other people thought about their lifestyle and found it easier to just not be open about it. So that Sunday evening after the girls returned to their apartment near campus, I cleaned out some clutter in my 2-car garage so that both my car and Kim's car would fit inside. On their next visit, I gave Kim a garage door opener. Their extended overnight stays at my home would not be as visible to prying eyes.
Another request the girls had concerned doing laundry at my home. I had a laundry room with a nice clothes washer and dryer set. They were tired of using the poor quality laundry in their apartment complex that was also somewhat expensive. As they were spending more time in my home, they thought they could come over earlier on Saturdays and do some laundry. They would even supply the laundry soap and softener dryer sheets for all of us to use. That sounded like a reasonable idea. So beginning that next week, they arrived late Saturday morning with loads of laundry to wash. At the time I did not recognize that we were moving down the slippery slope of becoming a domesticated family and all that entailed.
Next they wanted to leave, as a convenience, some of their clothes in a closet. As my home was built with a large master suite, complete with separate his & hers closets, I could make the "hers" closet available to both of them to share. I did have to move some stuff I had stored in that closet to another room. But again, a reasonable request and not a big bother.
And, of course, they wanted to leave makeup and toiletries in the bathroom. I remember thinking just a short while earlier about asking them to bring their toothbrushes. Now they were, and a lot more.
I had lived in my home for several years. I bought it new, a style and design common to new suburban subdivisions. It was a one-story ranch style with ten foot ceilings throughout. In keeping with current designs for Millennial families, it eschewed formal living and dining rooms for a large "great room", an open area that included a family/living/entertainment area, the kitchen, and a dining/breakfast area. The house had a large master suite, an office, two guest bedrooms, and 2.5 baths. I had tried to furnish it reasonably so it wasn't an obvious man-cave, but I suspected that they girls had issues with some of my furniture and decorating choices. The living area was probably okay as I had purchased a very nice leather sofa and two matching leather side chairs. But the bedrooms were rather sparse. The master bedroom had a king-size mattress and box spring set on a simple frame, no headboard or footboard. There were a pair of simple night stands and one simple dresser. While the bed was a great sexual playground, from a decorating perspective it was greatly lacking. And the one dresser was not enough for the three of us, even if they only stayed one night a week.
Before a month had passed Erica and Kim were talking with me about new bedroom furniture. And soon we were out shopping for a new suite of bedroom furniture. Many salespeople raised an eyebrow when the three of us inquired about a 4-poster, California King bed. We also got some knowing smiles and winks. The girls were very actively involved with looking at all the choices and discussing all the pros and cons of each piece. They were playful with each other and sometimes with me, touching, hugging, or tugging at my arm. They even teased some of the salespeople, the men and especially the women. We must have appeared to be quite a group.
We eventually found and purchased a large, solidly built, oak, 4-poster bed that included a mirror in the headboard, and a full-sized mirror above the bed in the canopy. The bed had small, dimmable lights near the top of each post which could provide mood lighting. And it had built-in amplified speakers that would play music from a cell phone, iPod, or any other music player with a headphone jack. The bedroom set also included two night stands, an upright chest of drawers for me, and a large dresser for the girls to use. The girls were ecstatic with our selections.
We arranged to have the new bedroom furniture delivered the following Saturday just after noon. Erica and Kim wanted to be at my home when all the furniture arrived as they would be taking the lead on the placement of furniture and the decorating of our bedroom. Before Saturday, they would be purchasing the necessary linens, pillows, a comforter, and other items needed. I wasn't sure what else might be needed besides a good mattress pad, but I left those decisions to the girls.
Saturday morning Kim and Erica arrived early. They carried in several shopping bags of items.
"Can I help carry stuff in?"
I offered.
"No, no, we got this Charlie. You can't see this now."
Answered Erica as the whisked away the bags with whatever they contained. I didn't think a lot about this at the time. The girls were dressed appropriately for the day of work we had before us, jeans, comfortable shirts, and canvas shoes. Our first task was to move the old master bedroom furniture into the larger of the two guest bedrooms. The queen bed that had been in that room was moved to the smaller, unfurnished third bedroom.
Soon after noon our new furniture arrived, Kim banished me to the great room and told me that she and Erica would be handling things and didn't want me to see anything until they had everything just right. I knew not to argue with the two of them, so I kept my distance in the living area watching a football game on TV. The girls were directing the delivery men and fairly quickly they got everything moved in. With the help of the delivery guys, they got everything assembled.
"Can I see it now?"
I asked from the living area.
"No Charlie. Stay out."
replied one, and,
"You can see it tonight."
replied the other.
I spent some time in the kitchen making a pan of lasagna for our dinner. I wasn't sure about the rest of our plans for the night, but it was understood that Kim and Erica were making the plans and I would learn of those plans when the time came. I was sure that sex, lots of sex would be involved, so I was content to let them do the planning. They had never failed to please me before.
Mid afternoon Erica came out to the kitchen and told me that things were coming along nicely. When I asked what those things were, she smiled and winked at me and said I would see, later. She asked if we could have dinner early, about 5 o'clock, and if it was okay for her and Kim to shower after dinner. I told her that was fine with me. Obviously they had plans that were for them to know and for me to find out about later. It appeared that they were trying to build anticipation within me and they were doing a good job of that.
Dinner was not anything fancy. I made my famous lasagna, a tossed salad, garlic bread, and I opened a bottle of my favorite red Zinfandel wine. About five o'clock Kim and Erica appeared in the kitchen. They both looked a bit worn from all their efforts, but they both wore wonderful smiles as if they were well pleased with what they had done.
"Let's eat!"
I announced.
"Serve yourselves in the kitchen while I pour the wine."
I took the wine bottle and three glasses to the table and poured each of us a glass.
"I just love your lasagna."
Replied Erica as she served herself a good sized portion.
"And pasta will give us the energy we need for later this evening."
Added Kim, which caused both girls to giggle.
"Eat hearty Charlie. You also will need lots of energy."
"Energy for what?"
I asked as if I didn't know or strongly suspect what was likely to take place a bit later. They didn't respond to my question but just continued to smile knowingly.
We all took our plates full of lasagna, salad, and bread to the dining table and took our seats. The food was fabulous. I kept watching the two girls as we ate. They kept glancing at each other, sometimes winking, and other times flashing a big grin. Obviously they had big plans for tonight. And they were making me wait to see what they had in store for me. I was trying to remember exactly what that massive bed looked like in the store, and then trying to picture that bed in our bedroom with the three of us on it. As the dinner progressed, my curiosity and arousal both were growing.
"It appears that the two of you have done a lot of work in the bedroom and have plans for us tonight."
I spoke, trying to coax them to provide some details of what was to follow.
"Charlie,"
