I awoke to the sound of a ringing phone. It was answered elsewhere in the house. I was sleeping on my side, my back against the back of the couch, between sheets and covered by a blanket. I took me a moment to realize where I was. This was so much like my business travelling; waking up in a new and unfamiliar place and having to get my bearings about where I was and when.

As far as I could tell, I was alone downstairs. My clothes were on the floor where I had left them. I swung the covers off me and sat up. I was still naked and some of the dried evidence of the interlude between Catie and I was still present in my pubic hairs. So, I hadn't imagined or dreamed it. I got up, slipped on my undershorts and pants. I pulled out a clean t-shirt and put it on and headed to one of the downstairs bathrooms. I washed up a bit and then came back out to the living room to fold up the sheets and blanket and, along with the pillows, piled them at the end of the couch.

In a few minutes the whole household was awake and going through a morning startup. It was a little after 8:00 AM (Pacific time). It was Sunday morning. Another thought entered my mind: What if they went to church and had the expectation that I'd go with them? I hadn't planned on that contingency (clothes and otherwise) and Catie and I had never talked about it. If we were still in Chicago, Catie and I would be starting our day intertwined in some sexual position somewhere in her apartment. It wasn't long before it became obvious that "going to church" wasn't in the cards. But there would be breakfast.

"How did you sleep?" was a question I got several times as people came down the stairs. I didn't give the smartass answer I could have about not knowing because of Catie keeping me awake in the middle of the night.

"I slept fine, thank you." Catie's mom, Marianne, came downstairs and began "directing traffic" around the morning's breakfast and the plans for the day. Coffee was being brewed. At the time, I rarely drank coffee. My how things have changed for me.

Catie and Abby were the last ones downstairs. I was standing near the table when Catie came next to me and wrapped her arm around my waist. She gave me a quick peck on the cheek and told me that she had put some towels out for me in the upstairs bathroom if I wanted to go take a shower before everyone else. She then said quietly, so that only I could hear, that she wished that she could join me in the shower. I nodded my head.

She drew closer to my ear and told me that I had fired a really big load (of cum) into her and that it was still dripping out of her and what she really wished was I could clean her out as only I could. I smiled at the thought.

"So do I, " I said very, very quietly.

Abby, on the other hand, was quiet this morning after last night's discussion. She would look at me and then look down and away. I noticed that sometimes that "down and away" was at my crotch. She had this funny look and grin that I figured was an after effect from the discussion that the three of us had the evening before. And who knew what "girl talk" had continued after they went upstairs.

I went into the kitchen to get some orange juice before going upstairs to take my shower. As I left the kitchen and headed towards the stairs I walked up close to Abby and quietly said "I hope we didn't embarrass you last night."

"No, you didn't." She kept eye contact for much longer.

"Okay, I'm glad." And I walked away to the stairs. I realized I needed clean clothes so I carefully got them out of my suitcase.

Catie was waiting at the base of the stairs to give me directions to the bathroom.

"Is Abby okay after last night?" I asked.

"Yes, she's fine." I mentioned she had a kind of funny look on her face. Catie told me not to worry about it.

I headed upstairs with my clothes and took my shower. I didn't expect Catie to come join me, but I could wish and fantasize while I was in the shower. In the end, it was just me in the shower. I could smell breakfast being cooked as I finished my shower. I put on a pair of sweatpants and a sweatshirt. I came downstairs just in time for breakfast.

Catie's brothers would be heading back to their respective residences north and south of Portland on I-5 later in the day since they lived only a few hours away from Portland. They would return to their jobs on Monday and could come back if there was any change in their dad's condition that required their presence. Catie's mom would be at the hospital much of Sunday. Catie and I were given a couple errands (like laundry) that included shopping for groceries. We would come to the hospital later in the day before her brothers left for their homes. By the evening, it would be just me, Catie's mom, Catie's sister, and Catie at the house.

I helped clean up after breakfast while others prepared for the day ahead. At some point I collected some of the bedsheets and towels to begin doing the laundry. Abby kidded me about my domestication. I reminded her that I had my own home and a son and that I was the one who had to do the laundry. I was more than willing to lend a hand in this situation.

"In fact, even when married, I washed my own clothes." Since there wasn't anyone else in the immediate area, I added "Of course, when I do the laundry at home, I'm usually naked." She chuckled at that and told me I could do that later when everyone else left, and then she left and went somewhere else in the house. I settled down in the living room and turned on the TV. Back in those days, televisions were part of the furniture and there might be smaller televisions in a few rooms in the house. After taking her shower, Catie joined me. She was wearing sweatpants and a Chicago Bears sweatshirt. We were both dressed quite casually and comfortably.

By about 10:30 almost everyone was getting packed up to leave and go to the hospital. I was under the impression that it would just be Catie and I who would stay behind and then we'd complete our errands before going to the hospital. I was a little surprised that Abby was staying behind with us. But she also had her own car, so she could leave when she was ready independent of when we left. The rest of the family left (except Abby).

Since we were alone in the living room, I asked Catie "Did you get cleaned up okay?"

"Yes. But I'm still leaking a little. We need to do a more extensive cleaning."

I smiled knowingly. We started to talk about our "to do list" and where (and when) we'd be going.

A few minutes later, Abby came bounding down the stairs.

"I thought you'd be naked by now."

I told Catie about my previous response to Abby about being "domesticated."

"I don't think that's what she is talking about." I was puzzled.

"I watched you this morning," Abby said. I was confused by what she meant. It turned out that Abby was sitting on the steps in the dark watching Catie and I as she quietly rode my cock on the couch.

"And you knew?"

"I told her she could watch."

"You're corrupting your sister."

"Her friends have already 'corrupted' her. And, she's an adult."

This is when I found out what talking was going on after they went upstairs and I got ready for bed. But Catie took it farther by telling Abby about our sex life in more detail. She revealed much more than what she had shared while the three of us were talking together.

"It was hot!" Abby said.

"What was?"

"What sis told me and watching you two. It's nothing like the videos or what my friends have told me." I suggested that had more to do with our age and that videos were a poor portrayal of what real sex was like.

"Is it always that way?" Abby asked. Once we understood what she was asking, we told her no. Sometimes it was vigorous and noisy with raw sexuality.

"We were trying to be quiet so that we wouldn't wake anyone."

I got up to take the first washed load of sheets out of the washing machine and put them in the dryer and set it. But getting up meant rearranging my penis in my sweatpants so it wasn't poking out in front of me. I tried not to be too obvious about it. Load two went into the washer and I turned the washing machine back on. I waited for the washer to fill before I came back into the living room where Catie and Abby were sitting and talking.

"Abby has a question for you," Catie said as I sat back down on the couch.

"Shoot!"

They laughed at the joke I didn't get (yet).

"Do guys really like blow jobs?" Abby asked.

"I can't speak for all guys, but yes, I think most guys like blow jobs. But most guys I know would like their cocks in warm, moist, body cavities so they can cum and the mouth is an easy one to get to. Not all women are good at it or even really want to do it."

"Why do you say that?"

"Two things. First, because you don't have a cock, you have no idea of how it feels to have a mouth wrapped around it or what really feels good. Just like I don't have a vagina and a clitoris and I have no idea of what it feels like to have it licked or sucked on. It's a bit of a guess at first and then it's a skill that must be learned by observation and sharing."

I paused for a long moment.

"And the second?"

"It's having someone cum in your mouth. For me, it's visually erotic and the sensation of having a warm mouth wrapped around my cock as I cum can be wonderful. But the taste, the smell, or the texture of semen being spurted into your mouth can be a turn off. Not everyone likes it or even finds it appealing."

"I've tasted your cum," Abby said. My head snapped around at that comment.

"What?"

"I tasted your cum. After you and sis were done and we went back upstairs to my room. She showed me how your cum was dripping out of her. She told me I could taste it if I wanted to."

I suddenly realized we were straying into some really dangerous territory.

"And what did you think?"

"A little salty, smelled like...well, I'm not sure. I know it was a combination of your cum and her juices. Slippery, too."

I guessed that meant she had gathered my cum on her fingers. There was another pause.

"Do you really like eating your own cum after cumming in her?"

"What else did you tell her?" I asked as I shot a hard glance at Catie. She smiled a bit sheepishly.

"She also told me about you doing enemas. That sounds gross, and a little weird, if you ask me," Abby said.

"We enjoy the way they feel. They add kinkiness to plain, ordinary sex and it makes anal sex much cleaner and easier. But not everyone likes them, either."

"Oh!"

"And yes, I do like eating my cum out of her. I'll even kiss her after I've cum in her mouth. Most guys I know won't do that, either. It sounds erotic until you have to do it. It's something I learned how to do. Years ago, I figured if some young women has allowed me to shoot a load of my semen into her, especially in her mouth, I should be willing share the experience with her."

"What about after anal?" Abby asked.

"That's a special case. It depends,"

"Can I tell you something. Some of this is very kinky stuff. Not everyone would like it or even understand it. Others' might not like that you know about it. So be careful about what you tell others. Okay?"

"Okay," Abby said. Catie told me that she was "sorry."

As I said that, I realized I was more than a little upset that Catie had shared this information with Abby. I could just imagine the conversations that Abby was going to have with her friends and where it would go from there.

"Sugar, I love all the things we do together, that we share together, and even try out together. But some of that needs to stay between us because not everyone else would understand."

The conversation wandered off to non-sexual topics for a while.

A few minutes later the dryer buzzer sounded and the first batch of sheets were dried. Catie asked me to get the laundry out of the dryer and bring it back to the living room. I placed the load that had just been washed into the dryer.

"We'll help you fold things up out here."

I got up and walked through the kitchen to the laundry room at the end of the house. It was positioned behind the kitchen. There was an entrance to the house that acted like a "mud room" in conjunction to the laundry room. From there, I couldn't see back through the house. I looked out the door to see what it looked like outside. Still cloudy. I took the sheets out of the dryer and piled them up. I put the towels I had just washed in the dryer. There were a few more towels and some sheets for the next washer load. I set it and added the detergent, and then turned it on. At least I was earning my keep, I thought.

When I came back into the living room with the warm sheets, Catie and Abby were sitting on their knees in the middle of the room. Both had removed their clothes. They had taken the sheets and pillows that I had left at the end of the couch and put them on the rug to form a little bedding area. Before I had a chance to say something or even ask, Catie said "You like to do the laundry naked. Let's do it naked."

I mildly protested. Catie got up and reminded me that I spent all that time on the nude beach at Rooster Rock and that this shouldn't be any different than being naked there. I put the warm sheets down and Catie stripped me out of my sweatpants and sweatshirt. I told Catie that I generally didn't walk around at Rooster Rock with a hard-on. We folded the sheets together and piled them on the couch.

Because they had placed the sheets and pillows on the floor, I figured there was more to this plan. It didn't take long to find out what it was. Catie asked me to get on the floor on my back. One of the pillows was lined up with my body rather than crosswise so that it would go under my head and neck.

"I didn't do this at Rooster Rock, either," I said. Catie quickly explained what she wanted to do with me and that Abby was the observer; this time up close rather than from afar at the stairs.

"Can you do that for us?"

"I'm still hard and I haven't shriveled up like a prune. Yet!" Yes, I was still hard and I could tell that with each heartbeat, my cock throbbed noticeably. I realized that I was going to be the specimen in a sex lesson.

Catie straddled me on her knees and gently lowered part of her weight on my chest. She directed her commentary to Abby.

"When you're on top, you control almost everything except maybe how fast he cums, if he can't control himself. Are you able to control yourself?" she asked looking down at me.

"Most of the time," I said.

"He's really good at it!" Catie told Abby. "Some guys aren't. He should teach a class...." I listened as Catie continued her "narration." Abby was to my right, above head level. She was just barely within my peripheral vision.

Catie finally walked herself up my body on her knees and settled her pussy lightly down on my lips and tongue and that was my signal to start my part in oral sex. I wasn't paying careful attention to what Catie was saying and eventually it got difficult for Catie to speak in a coherent narration as to what was happening thanks to my tongue and mouth action. Abby moved down from above my head closer to my right side.

Unlike the early morning, we didn't have to be "quiet." It was just us. Catie was having a series of orgasms as she varied the angle, pressure, and intensity of "sitting on my face." I followed her lead as she rocked on me. I felt hands gripping around my cock and gently stroking but I couldn't tell if they were Catie's hands, Abby's or both. From this position I could only look up Catie's abdomen, to her breasts and her face. I would reach up to give her nipples a squeeze from time to time which would also push Catie over the edge.

When Catie was ready to change position, she swung her left leg around so that she positioned to my left. Abby was positioned on her knees to my right at just about my hip level. Catie maneuvered around to place herself in the 69 oral sex position. She told Abby that we did this both ways (with me on top or her on top) and that it was one of our favorite mutual oral sex positions. As Catie positioned herself above me, I took the pillow positioned under my head and folded/doubled it so that I had better access to Catie's pussy. I felt Catie take my cock into her mouth. From this position I could see Abby more clearly by looking down my right side. She was watching her sister intently as she sucked, stroked, and licked my cock.

Although she was on her knees beside us, she had spread her legs somewhat and her right hand was between her legs purposefully but subtly rubbing her slit. I watched as her eyes closed and she would quiver for a moment and then she would look back at her sister sucking my cock before the next quiet wave would break. One of those times when she opened her eyes, she looked to her left and saw that I could see her over her sister's hip. Her eyes widened upon realizing I was watching her and she started to withdraw her hand. I gently pulled my face away from Catie and very quietly said "It's okay" as I reached down with my right hand to touch her left leg. Abby's hand slid back into her crotch.

This went on for a while longer until Catie sat straight up with one of her more intense orgasms. My line of sight was broken as Catie sat straight up on my face. I don't know if Catie was aware of Abby's masturbation when she rose up or whether Abby continued after Catie was mostly sitting up on me. But moments later I became aware of the unmistakable sensation of my cock being in a warm mouth. Since Catie was upright on me as she rode her waves orgasms, it could only be Abby's as she apparently leaned over me to take me into her mouth.

Just the thought nearly had me lose my load, but I relaxed and enjoyed the moment. As Catie's orgasm subsided, she lifted her weight off my face and was giving Abby suggestions/directions what to do. She finally lifted off me so that I could see Abby's head, her hair falling around her face. I reached down and brushed her hair aside so I could see her sucking my cock. By placing my hand on her head, I gently guided her and gave her my own instructions on what to do and what felt good as she sucked and licked the shaft and the head of my cock. As a novice she was doing well and was taking the coaching.

Catie had her stop. Abby was confused.

"Don't we want him to cum?"

"Yes," Catie said, "If we had a couple of more hours than we have now we could do everything. But we don't have the time, right now."

Catie turned to me and asked "Love, are you ready to cum in me, again?"

"You know I am."

Catie turned around and positioned herself so that she was facing me and ready to slide down the shaft of my cock. She told Abby that she could take my cock in her hand and hold it in position while she slid it into her. There were a couple of missed attempts but they finally got me into position at the correct angle as Catie slowly slid down my cock. Abby got a good view and sensation of holding a cock while it was being slid in. She told Abby that it would feel completely different when she (Abby) was holding a cock while it was sliding into her. As Catie bottomed out, Abby started to remove her hand, but Catie grabbed it and held it and her own hand to my balls as Catie slid my cock in and out of her. She was incredibly wet and warm.

I remembered the old saying from high school where a 'nice girl' will let you put it in her (your cock). A 'good girl' would put it in for you. We didn't have a saying where the girl's sister would put it into her sister for you. There were some rumored threesomes when I was in high school but none of them involved sisters.

"How are you doing, lover boy?" Catie asked.

"Really fine," I replied. I think I was beginning to swell in the run-up to my own orgasm. Then I quietly said to Catie "Have her sit on my face."

"Abby, come up here," Catie commanded. Abby obediently moved up on her knees beside me.

"It's time for you to have your pussy eaten by a master." Abby looked at me and her sister with some uncertainty.

"Which way?" she asked.

"Facing your sister," I said

Catie had stopped riding me and was holding still for this maneuvering. Abby positioned herself above my face, above my mouth. I told her to follow whatever her body told her in seeking pressure and angle. She worried that she might hurt me.

"As long as you aren't bouncing on my face, I'll be fine. If I need air, I can push you up so I can breath."

As she lowered herself, Catie started riding me again. The two sisters clasped hands as Abby lowered those vaginal lips to my waiting mouth and tongue. At first contact, I felt and so her butt cheeks tense up to have rise up slightly, relax, and then tighten again to increase and decrease the pressure against her pussy. I did nothing with my tongue. Just pursed my lips to be receptive to her pressure. She increased the pace slightly and began sliding forward and back almost imperceptibly, changing the angle and where the pressure was applied. Catie was coaching her to let the sensation and build until it felt like it would have to be released.

I was biding my time, trying to sense where Abby was on her orgasm wave. I sensed she was close. She was hot and the juices were flowing out of her. I finally thought "it was time" and I slipped my tongue from behind my lips and ran the tip firmly up and down her slit, over and around her clitoris and into her vaginal opening. Her legs gave way as she settled down and started shaking. I knew Catie was there to hold her up. I grabbed her by her hip bones, cocked my head forward to press my tongue home, sliding in and out of her vaginal opening and pulled her down on me. I knew that as I was doing this, my nose was pressing against her perineum and against the outer anal muscle ring for an even more intense experience.

She was shaking and practically collapsed forward against Catie with a guttural moaning emanating from deep inside her. She wanted to pull away from the intensity but I had a firm grasp of her hips. Catie was now experiencing her own orgasmic wave so that I had the two of them cumming above me.

"Come on, baby, cum for me! Oh, God, cum" Catie said over and over. I couldn't tell whether it was directed at Abby or at me. Either way, it was too good to miss. And with as much upthrusting as I could manage, I pushed my cock into Catie as deeply as I could while hanging on to Abby's hips and holding her down on my face. I rocked my head back a little so I could breathe while we were cumming and kept my tongue and mouth firmly planted in Abby's pussy. This great orgasmic earthquake lasted a good two minutes though my own orgasm was only in the last minute.

I finally released Abby's hips and she immediately changed the angle and pressure from my mouth. Catie finally rode her wave out knowing that I had filled her once again with my cum. We were all breathing heavily and I was suddenly aware of how much we were sweating.

It was Abby who moved first by swinging her leg over my head laying down on my left side beside us. Her legs were up near my head, her head near my hips. This allowed Catie to pitch forward and lay on top of me. Abby moved a little further down so that she could see my cock still inside Catie's pussy. I gave Catie a couple of voluntary contractions through my cock so that she knew I was "still there."

Abby was positioned so that she could see my cock gradually getting softer while staying in her sister. It sometimes felt like it was "stuck" in her and then would suddenly slide out. Other times is seemed that there was gradual progress out of Catie's vagina. That's the way it seemed this morning. But I could tell "the slide" was coming. Catie felt it, too. She said to Abby "watch this" as she pulled herself up slightly off my stomach and the moved forward so that I would "pop out."

There wasn't a huge gush of cum because of the angle she was maintaining with her hips and butt. She got her butt up in the air so that my cum was mostly pooled inside her. She then crawled forward over me. As her breasts passed the level of my mouth, I took the time to at least give both of them a little suck and little nibble. She continued forward so that when she tilted up her hips would be located such that she could sit down on my mouth and let the initial surge of cum drain out of her into my mouth.

I knew from experience that there would be a small quantity of cum on my penis as well as a small amount that ended up on my belly. There might be a spotty "snail trail" of cum up my body before Catie turned herself up. Catie settled down on my mouth and I felt my warm cum draining out of her into my mouth and my throat. It was a familiar taste to me. Bland like a thin paste that was slightly salty. To me, my semen smelled a little like chlorine, too.

I was in that sexual afterglow state and once again I was looking up into Catie's eyes from between her legs. Suddenly, I flinched from an unexpected sensation. I realized that Abby was sucking on my partially flaccid cock. I pressed Catie to rise up slightly so I could speak and I told Abby to "be gentle." This caused Catie to get up and turn around while I continued to lick my cum out of her pussy. Now facing Abby, Catie told Abby that the first couple of minutes after cumming that guy's cocks could be supersensitive. But the two of them were evidently taking turns licking my cock clean and applying gentle sucking actions. I could feel the blood flowing back to get me erect once again.

We heard the buzzer on the dryer go off indicating that another load was dry. It also reminded all of us that were were going to have to get ourselves together and run those errands that we had.

I was enjoying being used as a research and teaching tool and specimen. I was worried, too, because this could all go very badly. I justified it, at the time, as being pleasing to Catie and fulfilling her lustful desires. I found it pleasurable, too, because I had never had sisters devote this type of sexual attention to me.

After a few more minutes together, we got up, got quick showers and cleaned up. Before we left, I put the sheets we had just used and all of our most recently used towels into the washing machine to be washed later.