Mom kissed us both, and left for the office. Jill and I sat and had coffee.

“Well?” Questioned Jill.

“Well what?”

“Geez, girl. You slept with Mom for the first time. So tell me. How was it?

“It was very nice.”

“Come on. Give me details.”

“Okay. When I got in bed with her last night, we cuddled and kissed. I honestly thought that would be it. But, of course, I got aroused. She asked if I’d like her to take off her flannel nightgown. Of course, I said yes. She was then completely naked. We kissed, and somehow I ended up rubbing my cock on her vagina. Then, well, it slipped in. We got into a rhythm, going for quite a while. I was about to cum. I guess she felt it wasn’t appropriate, and asked me to pull out. I did, but then she sucked me and I came in her mouth.

“Wow. I’m jealous,” said Jill. “ How about this morning? You guys were so noisy it woke me up.”

“We slept through the night. I woke with my erect cock pressed against her butt. Without opening her eyes, she spread her legs and I mounted her.

Jill giggled. “This is making me wet. Let’s get on the couch. Why don’t you fuck me while you tell me the rest.”

We moved over to the couch. Jill spread her legs and I started humping her.

“Okay, that’s better. Go on,” said Jill.

“Mom had an orgasm. Then another, and another. I was about to cum, and when I went to pull out, she stopped me and asked if it would be special if I came in her. I said yes, and I released my load. It was special.”

“Sounds like Mom liked it. Did you like doing Mom more than me?”

“Jill! Stop it!”

“I’m sorry. I guess I’m feeling a tinge of jealousy. I know that’s ridiculous.”

“I loved being in Mom. But I love being in you.” I was fucking Jill hard. “I will tell you, you’re much tighter than Mom.” We giggled as we orgasmed together.

That evening, Mom seemed nervous. Jill asked if there was something wrong.

“Jill, I assume Erica told you what we did?”

"Yes, Mom. She did.”

“How do you feel about it?”

Jill got up, went over, and kissed Mom on the lips.

“Mom, we adore you. I’m fine with you and Erica doing whatever.”

Jill continued. “When Erica became my sister, we found a new closeness. That led to an intimacy I never imagined. I love having her inside me.”

“I’m glad you’re both okay with it. It’s not something I ever thought of doing. But, Jill, Erica is really a good fuck, isn’t she?”

We all laughed. “She’s amazing.”

“Now that we have both had sex with Erica, are we open now to doing whatever might come along?” Jill asked.

“I think I am now,” Mom said, smiling.

“Me too. It seems the more we do, the closer we become,” I said.

The next day, Jill and I went shopping and out to lunch. We grocery-shopped, went home, and made a nice dinner.

Mom was pleasantly surprised and we had a nice time with a good bottle of wine.

After dinner, we changed into robes and watched TV together.

I was sitting next to Mom. Her robe fell open, allowing me to fondle her wonderful, large breasts.

Mom casually reached into my panties. She started stroking me, bringing me to full, throbbing hardness.

Jill noticed and moved next to me and licked the tip while Mom continued stroking me.

Jill stopped. “Okay, that’s enough of that. Erica, how about you have Mom and me for dessert?” She asked with a big smile.

Mom and Jill sat back, pulled their panties off, and spread their legs. “Erica, get to work.” Jill giggled.

I started licking Jill. Then I moved to Mom. Back and forth I went until first Jill, and then Mom, had an orgasm.

“Okay, I need to cum,” I said. Who wants it?

Jill looked at Mom. “I think Jill would.” Mom said.

Jill laid back on the couch and spread her legs.

“I can’t believe I’m watching this,” Mom said. We hesitated.

“No, go ahead. I’ve heard it. Might as well see it.” Mom laughed. She knelt next to us as I slid my cock in and out of my sister. Here I was, fucking my sister while my mother watched. Why did it seem so natural?

I was moving slowly, almost pulling out, and then slowly pushing myself into Jill’s tight vagina. I lifted up onto my arms without losing my rhythm.

Jill spoke. “Mom, straddle my face and let me lick you while Erica fucks me.”

Mom immediately did so, lowering her hairy pussy into Jill’s mouth. Jill licked voraciously.

Mom was facing me. I continued to fuck Jill while Mom and I kissed. Jill had an orgasm, and I stopped.

Jill looked up. “That’s enough for me for now. Mom, why don’t you take my place? I want to watch.”

I pulled out of my sister. Jill got up and Mom took her place. She spread her legs and smiled. I slid my well-moistened penis into my mother’s wet vagina. I got into a rhythm, sliding in and out of her. Jill watched intently.

“It’s so erotic watching you two,” Jill said as she fingered herself. I continued to slowly slide in and out of Mom.

“Im going to cum!” I said.

“Go ahead. Me too!” Whispered Mom. I let loose a torrent of semen as she orgasmed.

We went and took showers and came back downstairs. Mom smiled and said, “You girls better take it easy on me. But that was fun.”

“It’s all new. But I’m sure we’ll settle down,” Jill said.

Mom asked. “I mean, are there limits?”

“Jill and I haven’t found any yet,” I responded with a smile. “What about you, Mom?”

“I’m pretty open. I’m loving this more than I ever thought I would.”

“What do you like the most, Mom?” Jill asked.

“Well, Jill, you are good at licking my pussy. And Erica, you can fuck me whenever you want. God, I can’t believe I just said that.” We all laughed.

“What about you two?”

“Mom, I love making out with you. You are a really good kisser. And I hope you like sucking me. I love it. And I have to say, I loved fucking you too.”

Jill added, “Mom. I love kissing you. And you can lick my pussy anytime.”

“It sounds like we’re all pretty open. Anything else, girls?”

“I want Erica to do me anally. I’ve never had that.”

Mom turned to me. “Erica, what do you think?”

“I’ll do anything for my sister, Mom.”

“I’ve never had that either,” Mom said. “Maybe we’ll try that, Erica.”

“Sure, Mom. Let me know when you’re ready.”

“I will.”

“Okay, girls. Time for bed.”

As time went on, we became closer than ever. Some nights, I’d sleep with Mom. On most nights, Jill and I slept together.

Mom was working hard, and we were getting ready for our move. We scheduled an appointment with a doctor and scheduled my breast augmentation. I decided to go with C-cups, the same as Jill. After all, we were twins.

Saturday evenings evolved into adventure nights. We’d come up with new things. We asked Mom to shave her pussy, like Jill did. She asked us why. “Mom, we both get your pubic hairs caught in our teeth.” We laughed hard.

We decided that the next Saturday would be anal night. Jill and Mom made sure they were clean. We got a tube of KY.

We had a couple of glasses of wine and took off our clothes. Jill decided to go first. I fingered her butt hole with the KY. Mom made sure I stayed hard, stroking my cock. Jill got on all fours and Mom helped guide me into her. Jill was tight and I couldn’t quite get all of it in her. She decided it was too uncomfortable and that she’d rather have it in her vagina. So I fucked her for a few minutes while Mom watched.

“Do you want to try, Mom?”

“Yes, if you don’t mind, Erica.”

Mom got on all fours and Jill fingered her ass with the KY.

I slowly started nudging my stiff rod into her. I was incredibly aroused by the fact that I was about to fuck my mother in her ass. After a minute or two of pushing, I slipped in. I started getting into a rhythm.

“How is it, Mom?” Jill asked.

“I shouldn’t say this, but I love it,” Mom replied.

I started fucking her hard. “Oh, Erica. That feels wonderful. Jill, would you finger me while Erica fucks my ass?”

Jill moved next to us and reached down and inserted two, and then three fingers in Mom.

Mom had an orgasm. Jill’s other hand was in her vagina. “I’m going to cum, Mom. Do you want me to pull out?”

“No, Erica. Shoot your load in mommy’s ass.”

I had a spectacular orgasm as I unloaded in her very tight hole.

“Wow, that was something,” Mom said with a big smile. “Did you like it, Erica?”

“Oh yes, Mom. That was amazing. Thanks for letting me cum.”

Mom smiled as she wiped my dripping cum from her butt with a tissue.

“I keep thinking what we’re doing is wrong. But we all seem so close, and we’re all happy. I loved having both of you in me at the same time.”

“I loved it,” said Jill.

“Me too,” I said.

We all continued to be intimate. There was no guilt. We loved each other.

We scheduled my breast job and it went smoothly. I was overjoyed to have tits. Mom and Jill thought they were perfect.

Mom and her twin daughters moved to Chicago.