All characters are over 18
My name is John and my sister's name is Rose and we are twins and 19. Mom is 40 and is a still a looker. I'd say she is 125, 5'6", has short blonde hair, blue eyes a nice ass and big tits, and oh those nipples...mmm.
My dad is 5'9", about 185, 41 and brown hair, brown eyes and a fairly large cock, bigger than mine.
Rose is 5'7", about 120, dirty blonde hair, blue eyes and is pretty hot looking for a sister. She has big tits too.
I am also 5'7", brown hair & brown eyes and around 160. I have an athletic build and a 7" cock.
We live in the boondocks far from everyone so there was no problem going outside without any clothes on. Once in a awhile, somebody would be lost and come up to the house and got an eyeful, but that was rare.
Mom and dad never hid behind clothes while in the house. My sister and I never wear clothes in the house. It isn't unusual for all of us to be watching tv when dad and mom get frisky.
Many a times we watch mom and dad kissing and dad's cock get hard and then mom would suck it or she would sit on his lap and we watch his cock disappear into our mother's cunt and they have sex in front of us.
Hell, my sister and I even sleep together in the same bed.
They only warning we get is 'don't get pregnant' and that was it.
It seems me and my sister were getting hornier and hornier every day.
One night as we were all watching tv my sister and I got into a little horseplay and before I realized it, my cock got real hard as my sister kept brushing up against it. Mom saw this and said, "Look hon, John has a big hard on. Rose do something for your brother."
"What do you want me to do?"
"I don't know...suck him off...let him fuck you...whatever."
"Mom, I don't want to do that."
"If you don't take of your brother, I'm going to smack your ass."
With those words, my sister looked at me and my hard cock. I said to her, "You heard what mom said. You got me hard now take care of me."
Without saying another word, she knelt down and took my cock in her mouth and started sucking me. I heard mom say to my dad, "Look, your daughter is doing a good job on her brother."
Dad answered, "Maybe you should give her some pointers," as he laughed.
It didn't take long before I was ready to cum. I yelled out, "I'm cumming," as I held my sister's head tight and shot streams of cum into her mouth. I laughed as a lot of my cum came out of her mouth and not down her throat.
Mom and dad clapped and my sister had cum dripping down onto her tits and nipples.
"There...you satisfied brother?"
"It wasn't great but it was ok." I said to her.
Then she got up and went to get cleaned up. When she left my mom said, "Have you two fucked yet?"
"No. Why?"
"Well, it's about time you two did. Don't you think?"
"I guess so."
That night after I showered and got into bed I said to Rose, "Thanks for sucking my cock today. You were real good."
"You're welcome. Was I really good?"
"I thought you were great. Sorry I came so much in your mouth though."
"That's ok brother. I just didn't expect so much cum. Next time I'll be ready."
"You want to do it now?"
"I'd rather you fuck me like dad fucks mom."
When she said that I got on my back and she straddled me, facing me. My cock was hard and sticking straight up. She eased herself down on my cock and I watched it disappear into her cunt.
"How does that feel sis?"
"Your cock filled me up. It's so big."
I then told her to start riding my cock by going up and down on it. She wasted no time in riding me.
"How is it sis?"