Hi! Just wanted to introduce myself, my sister and a bit of family history. Well, she's only my half sister. We both were orphans for awhile before a wealthy and caring couple from the United States adopted us.

We were born in Vietnam and have the same mother but different American fathers. Apparently, our birth mother survived those terrible years with the help of a few soldiers from the U.S. We, of course, were the unplanned result.

I'm Misha and my sister, Svetlana, is a couple of years younger than me. I have dark skin and look much more like a black American than the Asian features of my birth mother. Svetlana is a beautiful mix of our birth mother and her American Caucasian father. We were renamed when we came to the United States, so that explains why we don't sound Asian.

Our adoptive parents are Russian immigrants so we spoke Vietnamese, then learned English and Russian while growing up. Most of this dates back to us as teenagers. I was nineteen and a sophomore in college with a double major in chemistry and computer sciences. My sister, Svetlana, was a honor roll student in high school. Of course, Svetlana and I are very close.

Now we are old enough to understand what it means to be swingers. Our parents have been into that lifestyle for as long as we've been in America. They were discrete about it, so we really didn't suspect what they were doing. We only knew that our parents would be out late and sometimes didn't get home until after dawn.

That was how it was until I turned sixteen and my hormones were flashing signals from my brain down between my legs. My maturity became evident to my mom at the most inopportune time. One evening I was in bed whacking off when she popped into my bedroom. She didn't say muchwhen she saw me, only enjoy yourself. While I was coming of age, Svetlana was still too young to really understand about her urges until later.

Looking back, I was lucky to be introduced to real sex with such a beautiful loving lady, my mom. One Saturday afternoon, Mom was the adult in the car teaching me to drive before I went to the Department of Motor Vehicles for the driving test. For some reason, I was practicing parallel parking in front of our house. No one has to parallel park these days, but it's on the test. Mom had placed traffic cones along the curb in front of our house for me to squeeze the car between them. Finally, after the fourth try, I got the hang of it.

"You know Misha," Mom said, "you are going to pass the test with flying colors."

"Thanks mom. Now I can finally ask a girl for a date. Girls just don't go out with guys that don't have a car."

"What do you know about girls, Misha?"

"Not much. They smell nice and look nice."

"What do you mean that girls look nice?"

"You know, they have nice hair and wear makeup."

"Do you notice their bodies?"

"I guess." I was getting a little embarrassed at that point, and wanted to cut the conversation short.

"Come in the house. I want to show you something," Mom said.

That's when my driving lesson became a sex education lesson. "Give me a moment, Misha," she said. "I'll be right with you."

I sat in my bedroom wondering what Mom wanted to show me. After a few minutes, she called out, "Come in here. I'm in the bedroom, Misha."

I kicked off my shoes because Dad is the kind of person that doesn't want any marks on their plush white carpet. Mom doesn't care because she has it cleaned once a month. I walked in the room in my bare feet, and Mom was at her dressing table combing her hair. I'd seen her do that many times. The only thing that surprised me was that she was wearing a sheer negligee. I mean I could see right through it! It was so sheer, it was almost invisible. I could see her whole naked body.

"It's kind of early for bed, Mom. Are you taking a nap?" I asked.

"No, son, this is what I want to show you," and she pulled the straps off her shoulder uncovering two beautiful breasts. "Your father and I think it's time you know something about women."

"Mom, we had sex education in junior high."

"Of course dear. Have you had sex with a girl yet?"

"No, but I want to."

"Well, today is your lucky day. I want to show you how to do it properly and make a girl happy." With that she walked over to me and helped me undress. Nervous wasn't a strong enough word to explain how I felt.

"What's Dad going to say, Mom?"

"It was his idea, son. Now lie down on our bed and stop worrying."

She let her gown fall to the floor so for the first time I saw her completely naked. It was the first time I had seen any woman completely naked except on the Internet.

"Let me explain, she said. "When a girl matures, she grows breasts and hair under her arms and between her legs. Most women shave off all of that unneeded hair, like me."

I definitely noticed that my mom's pussy was shaved. She looked so sexy. My face flushed with embarassment when she looked down at my hard-on that I had no control over. She gave me a seductive smile seeing me sprawled on the bed with my cock standing straight up and said, "I see you approve of what you see. My god, son, you are really well hung for being only sixteen."

I took that as a compliment.

She gave me a quick kiss, then went on with the lesson. "The first thing about having sex is that both the man and the woman should want to do it. I can see you are pretty much ready. For a woman, she is ready by getting wet inside her vagina. You can't see it, but I'm already wet. Take your finger and feel inside me."

She knelt on the bed with her legs slightly spread and took my hand between her thighs. My finger poked inside her slit. She was right. Mom was more than just wet. Her moisture flowed down my finger onto my hand.

"That feels good, son," she whispered. "A girl likes that so don't stop right away."

I continued to finger her hot pussy until she bent her tits over my mouth. "Something else a girl needs is to have her nipples sucked. It really makes her feel sexy and makes her full of desire between her legs."

While I was sucking Mom's nipples, she was busy stroking my hard cock. "You see, honey," she said, "girls like to pleasure their boyfriends too. One way is like I'm doing now with my hand. Another is with her mouth." She demonstrated with a slurpy blow job.

"Okay, son, that's what is called foreplay. I will show you more about that at another time but for now, I need to feel your beautiful young cock inside me. I think it best for your first time to have me in the missionary position."

Mom laid on her back spreading her legs wide apart. From a few porn sites on the Internet, I knew what to do next. It's just that my aim wasn't good, and Mom had to hold my dick to get it into her opening. I thought it would be hard to push in. It wasn't. I pushed all the way in without even a hint of resistance. What I didn't know was what it felt like to be in a hot wet pussy. It's not the same as jacking off.

"Aren't I supposed to wear a condom or something? That's what they taught us in school."

"No dear. Not now. I take birth control pills so you and Svetlana won't have any more brothers or sisters."

Okay, I wasn't a great lover and didn't last more than a minute. Cum just kept pouring out of me like a waterfall tumbling down a mountainside, and it didn't stop. Mom had an expression on her face that I'd never seen. Her eyes kind of rolled around in her head and she made cooing sounds that sounded like a mourning dove. She hugged me tight like when I was really young and wouldn't let go.

Finally I couldn't keep myself hard enough to stay inside her and when I pulled out, she rolled on her side saying how wonderful it was.

"Misha, go back to your room and take a shower. I'll show you more another time."

As the weeks went by, Mom showed me how to pleasure a girl orally and a bunch of different positions that makes sex really interesting. I liked it with her on top. I think that was her favorite too.

In the summer of that year, Svetlana was at soccer camp and mom and dad had their swinger group over for an evening. I was invited. Dad asked me to take videos of the couples that wished to have a souvenir of the occasion. If I didn't bring a girlfriend to share, he told me, I wasn't allowed to participate.

I learned a lot that night, and it wasn't about photography. I had always imagined sex was between a man and a woman. That night women were pleasuring each other, two men were fucking mom at the same time, and Dad had one lady munching on his cock while another sat on his face. It made me hard the whole time. I ended up in my bedroom to get myself off.

After graduating from high school, I found a hot girlfriend in college that was curious and horny enough to join me as a fifth couple in my parents' love club. It was during my first experience swinging that I decided it would be for me as well. It's hard to explain how exhilarating and unrestrained it is to be with people that think alike and have no inhibitions

The thing is, a few years later when Svetlana had turned sixteen, Mom told her it was time to become a woman.

"What do you mean by that, Mom?" she asked. That sounds naive but Svetlana was not a worldly girl. She needed to have it spelled out for her. It wasn't going to happen with driving lessons.

Mom said, "I want you to spend some time with your dad. Misha and I are playing a round of golf at the club Saturday afternoon and Dad will be around to give you a talk."

"What kind of talk. My grades are okay, aren't they?"

"Of course dear. He just wants to have a heart to heart talk about growing up and show you how much he loves you."

"I see. I love him too, Mom."

"Okay, then he will be waiting to see you on Saturday."

Mom and I were on the golf course so this is what Svetlana told me. She said he was sitting on the sofa watching football when she sat next to him. He put his arms around her and said she was so pretty. Then he turned off the TV and said, "What's your boyfriend's name?"

"Dad, I don't have a boyfriend."

"But you are dating someone, am I right?"

"I've had dates with a couple of guys."

"Have their hands been all over you?" and he put his hand on her knee making it clear what he was asking.

"Well, some try. One kissed me and I kissed him back."

"Look at you Sveta, all filled out, sexy and almost a woman."

"What do you mean almost, Daddy? My breasts are almost as big as Mom's. Is that what you mean?"

"No, your breasts are just fine. I mean you won't be a woman until you've been with a man."

"How do I have to be with a man? I am too young to be with a man. I only want to date boys my age."

"Okay, Sveta, I mean with a male, man or boy. A girl becomes a woman when she is no longer a virgin."

"You mean when I have sex with a guy?"

His hand moved up from her knee to mid-thigh when he answered. "That's right, but only with the right guy. Mom and I think the right time is now."

"Now? When is now?"

"Put your hand here, my darling. Tell me what you feel."

He took her hand and put it in his crotch. She pulled back, and he gently placed it there again.

"What do you feel, honey?"

"I feel a lump, daddy. It's kind of a hard lump."

"Unzip my pants and let's see what's in there."

"I know what's in there Daddy. Do you think I'm stupid?"

"No dear, you are not stupid, but you need some experience dealing with it."

"Okay, but what would Mom say if she knew what you want me to do."

"She knows, Sveta. Why do you think Misha and Mom left us alone? Look, we are family. There are no secrets here. Why don't you take off your blouse. I'll help you out of your bra. Do you think we can do that?"

"I suppose so. But that's all, right?"

"It depends on how you are feeling."

My sister took off her blouse like Dad had told her and he removed her bra.

"My god, Sveta, you are as lovely as your mom. You know your mom and I had sex with each other in the old country when she was about your age. Her tits looked exactly like yours. Just looking at you is making my lump even harder. Help me unzip and hold it in your hand."

Dad unzipped his pants and had Svetlana wrap her fingers around his erection.

"Dad, are all guys as big as you?"

"You need to know a man gets bigger when he is with a sexy girl like you. It isn't that way all of the time."

"I see," Svetlana said. "It gets big like this when you are ready to have sex? Are you going to have sex with me, Daddy?"

"That's right. Take off your panties so I can feel if you are ready. A woman has to be wet inside her vagina to be ready for sex. "

Svetlana did as she was told, then he put two fingers in her tight virginal pussy. "Do you touch yourself down here, Sveta?"

"Sometimes. It feels good."

"Good. We can make it feel even better now. I think you are almost ready dear but not yet. Use your mouth and suck on your daddy's hard bump."

My sister immediately obeyed. It wasn't clear if she was doing it to make Dad happy or if she thought a daughter has to do what she is told. Anyway, she held his cock in her mouth until Dad showed her how to pump his cock with her head bobbing up and down.

After she had learned to take him deep, almost throat deep, Dad got off the couch, spread her legs and began licking her pussy. Svetlana told me that once he was sucking her clit, she had lost all touch with reality.

"Daddy, oh Daddy, don't stop. That feels so good."

When his fingers went back into her pussy, he knew she was ready.

"Daddy put his big hands under my butt and pulled me toward him as he pushed in," Svetlana explained. "I don't know why, but I opened my legs without thinking when he pulled me up close. Misha, do you think girls are programmed to do that?"

"I really don't know, Svetlana, but it's probably nature's way and a good thing."

It wasn't pleasant when he first penetrated her, she said, but after awhile she got used to it. My sister said she thought it would only take a minute for Dad to finish, but it wasn't like that. He kept his cock riding into her for a long time, so she began feeling all kinds of sensations that she had never known before.

"Misha, I thought it was all over when he turned me over with my elbows on the sofa. That's when he pushed in again. Daddy kept sliding in and out, rubbing his hard penis inside me over and over again. It felt better that way."

She said when he began squirting his hot juices into her, that was the best part. "When he was done, I had to run to the bathroom. I thought I was peeing, but it was Daddy's creamy stuff trickling down my legs."

Svetlana was crying when Mom and I got home that Saturday. I asked her what was wrong.

"Dad and I had sex together."

"Did he hurt you?"

"No"

"Did he force you do it?"

"No"

"Then why are you crying?"

"That's what a woman does when she is happy. Daddy and Mom said a girl becomes a woman after she's had sex. You know, Misha, being with Daddy like that is the best thing that has ever happened to me. I was so glad to make him happy. He made me happy too feeling him pulsing and squirting inside me. It gave me a confidence boost that I needed. Really, I wish it would have never ended."

"Svetlana," I told her, "something very much like that happened to me too with Mom."

"Really? You never told me that."

That's when I told her the whole story of mom and me after the driving lesson. We both agreed that the thing they don't tell you in school are the feelings you get during sex. Svetlana added, "They probably don't want us to know how great it feels, and how fucking is so much fun. It's their way of trying to keep us from doing it."

I asked her, "Are you afraid you got pregnant from Dad cumming inside you?"

"Not really. I'm safe this week. It's not my fertile time, and Mom probably knows it too. All's well that ends well, don't your think?" she said.

Svetlana started on the pill the following week. She never told me if she fucked her boyfriends, but she did say that Dad and her did it a couple more times to show her different ways before she was invited to their swinger's party. She didn't...