To avoid the unhappy comments. This part is short and has one short sex scene at the start. And I talk about why my parts are short at the end.)
I held Ty's hand as we walked down the stairs to check on Mom and Andy. I figured they must be done by now. My mother had this ability of turning people on instantly, and with her skills, there was just no way Andy hadn't finished yet.
But then we heard the moaning and grunting coming from the kitchen. My mother really had no shame. She didn't care to be discreet about how much she enjoyed sex. I had started to notice she had a particular interest in screwing me, probably because I looked the most like my father. And while Ty took care of me just fine, and I was easily turned on by him, it happened even quicker with my mother.
I was in love with my brother, so our private couple sex, while still rough and loud, was more romantic. But the sex I had with my mother and Ty was entirely about lust and giving in to my deepest desires, knowing how wrong it was. And that was why I loved kissing and screwing my mother so much.
We peeked into the kitchen, where our mother and brother were going at it like wild animals. It made sense, knowing how much Mom loved sex and since this was Andy's first incestuous experience. Mom was on his lap, her body bouncing up and down Andy's dick. Her legs and arms wrapped around him. Andy's hands ran around Mom's back, in her hair, pausing to cup her breasts.
"They must be on round two or three," Ty stated.
"I don't think he cares anymore about what he can't take back," I said.
Ty pulled my back and pressed me up against the wall. We started to kiss and not even a minute later, Ty was hard again.
"Really?" I giggled.
"I can't help it. You've learned all her tricks. And don't go denying that Mom doesn't get you going just as easily. I've seen the way you react when you kiss her."
"True."
Ty pulled my shorts down, letting them fall around my ankles, and whipped his hard out, pushing it into my sex. I cried out, and I could tell they heard me from the kitchen because they got louder.
"Right here against the wall?" I said.
"We could pause and move to the couch."
"Don't you dare stop for even a second. Just fuck me here."
I wrapped my arms around my brother tightly as he roughly fucked me against the wall. I focused on the grunts and moans that mixed with mine.
In my mind, I replayed everything I had done in the past two years. From giving in to my desires with Ty on the toilet seat at the family cabin to the first time I tongued my mother on my living room couch. Every sex tape, the first threesome and each one after it. I had fucked my twin brother, fucked my mother, made out with three members of my family, and I loved every second of it.
I thought about the future too. Andy was now clearly part of our little incestuous family secret, and while I didn't mind Ty putting his dick in Mom's sex, I didn't want another man's dick inside my vagina. But that still left a lot of things I could do with Andy and any other brother who wanted to join in. And the things I could teach Millie and watch her do and watch be done to her. I'd fuck my entire adult family without shame at this point. I was not the same person I was at that cabin two years ago, fighting against loving my brother like that.
I wasn't shy anymore.
And that became very apparent months later.
Mom and I were only days away from our due dates when it happened. Ty and I had moved back in with Mom months earlier, and the three of us were gathered in the living room watching television. We didn't have sex around the time when Lily would be arriving home from school. I loved my sister but she was a huge cock blocker, like all kids.
At least when these babies were born, they wouldn't be old enough to understand anything for a few years. Ty, Mom, Andy, and I could fuck while the babies slept upstairs without worrying that they would hear us and come to investigate the "weird noises."
Ty and I had separate bedrooms, but Mom was smart. When Mom and Dad bought the house, they made sure to get one with a Jack and Jill bathroom. If you don't know what that is, it's a shared bathroom between two bedrooms, and it had doors leading from both bedrooms instead of one from the hallway. Think it of it as our own secret passageway to each other's rooms. However, Ty and I had always shared a room because of how many children those two sex addicts had. So we had never needed this secret passageway until now.
So, we'd enter our separate rooms for show and then slip into my room through our shared bathroom so we could sleep together like normal couples do.
Anyways, back to the story, Lily burst through the front door. It was late February and Lily was now in the eighth grade, and about to turn fourteen in the start of spring.
"It's here!" She exclaimed, waving an envelope in front of us.
"What's here?" Mom asked.
"Grandma and Grandpa have written back!"
Our faces dropped. And this was the first time I ever saw my mother upset. She stood up and practically snatched the envelope out of Lily's hand. She pulled out a letter and I watched her face as she read it. I saw the hurt in her eyes. She sat down and didn't say a word as she read it again.
"Your grandparents have invited you to visit them over spring Vacation. And made sure to mention that I am not invited." Mom scoffed and said, "I bet my mother wrote that part."
"Why are you not invited?" Lily asked.
