My not so innocent sister

It was the first day of summer in southern Illinois, and I had just graduated high school at the young age of 17. At the time, I lived with my parents and two sisters – Jane, who was nine, and Miriam, who was twelve. On the first day of summer, it was always tradation for our family to have a gigantic bonfire on our 47 acre plot of land that involved using all of the trees that had fallen over the course of the winter.
“Dan, will you go help your father gather wood?” I heard my mom yell from the kitchen. We had a backhoe and I was most skilled with it, considering I was the one who dug the seven acre pond that was 20 feet deep.
“Sure thing!” I yelled coming out of my room and into the kitchen. ”Need me to bring anything with?”
“You could take Miriam. You know how she loves the field.” It was true, she loved them ever since she could walk, but she always had one of us with her to keep her safe
At this point, I could hear Miriam’s footsteps as she was running to the door, “Ok ma, love ya!”
We walked out the door and went directly to the ATV vehicles. We got on the 450 knowing it had been muddy, we wanted to be able to get through without any major problems. As we got onto the quad, I immediately felt her small tits rubbing up on my back. I had a hard-on; as hard as can be. Cruising on the ATV, we continued to the main stretch that will take us down the property line. As we drove, both of us noticed it was not horribly muddy and I offered to let my sister drive. She instantly jumped at the opportunity, and was more than happy to drive. As we switched positions on the vehicle, she thought it would be funny to punch the gas hard. As she did that, my hands grabbed onto whatever was closest at the time, which happened to be her glorious breasts. As I did, she never let go of the gas; it was evident that she was enjoying my hands on her chest. When we slowed, I moved my hands to her firm stomach. She was a very petite girl, similar to her sister Jane, but Miriam took home gold when it came to that.
“Did you like what you felt?” she asked me as we came to a stop at the pole barn.
“I-I-I d-didn’t mean to! I’m s-sorry!” I did not know what to say… I did not expect to have her say that.
“What do you mean sorry? Didn’t you like it?”
I wanted to scream, “Are you kidding me?! I loved it!”
Instead, I held back and replied, “Well yeah, but you’re my sister.” She looked down seeming disappointed, and we ended up at the pole barn where the backhoe was. My dad was out on the other 450 with a trailer connect gathering smaller logs. Miriam got into the bucket of the backhoe, and laughed as we pulled out on the search for huge trees. Not too long into our search, we found one that caught our eyes. While I was choking the log, Miriam had found a Praying Mantis and she was bent over. While she was bending over, I looked over and her ass looked amazing! Even though it was not a shelf, it had a nice roundness to it. I found myself distracted looking at my sisters ass. Once I finally was able to look away, I yelled at Miriam to come back, and she came and sat in the main area with me. This was a nice sized log, so I was going to have to drag it. I turned and dragged it along to where my dad was. He was spray painting an outline for something at the time.
“What ya doing pops?” I yelled down to him.
“We’re digging a new pit this year.”
“Why?” I asked
“The old one is small and simply out dated.” He replied.
“Ok. Want me to dig it now, or go find some more logs?” I asked because I was wanting to get everything done quick.
“Go find some logs and come back. It will only take a few minutes.”
“Ok Miriam, do you want to ride the quad or the bucket?” I asked, but secretly I already knew the answer.
“The bucket.” she replied.
“Ok get on in. Just be careful of the chain saw.”
As she got in, I noticed she had grabbed a critter bucket. We quickly took off to find more logs. We came along one that was too long to fit in the bucket, so I got the chainsaw going and chopped it in half, and got it in the bucket. She could still fit in, so she sat down. I don’t know why, but that bugged me for some reason. I was trying my hardest to find another log quickly, and I was able to come across this one was at least a foot and a half in diameter and about 15 feet long. I proceeded cut it into three pieces. This time, Miriam realized she didn’t have room, so she came up to the seat with me. Only this time she sat on my lap and steered. While she was sitting on my lap, her ass was right on my crotch; I was getting turned on. I was getting so turned on that I had to fight an erection, but I failed she had realized that I was hard and started moving around.
“What the hell is that?!” she yelled at me.
“I’m sorry. It’s you sitting in my lap.”
“We will talk later, we’re almost here.”
As we came to the pit, my dad had already taken off to the house, so I decided to dig up the hole.
“Sis, why don’t you get on the quad and see if you can find some more logs.”
“Ugh do I have to?” she replied with a disappointed tone in her voice.