A few years ago my parents decided to take all their children on a cross country road trip to visit all our relatives. I was 19 and a freshman in college at the time so I had been away for the past year. My older sister Karen was 23 and was also attending school. This left only my younger sister Sarah at home. Sarah was 18 and was a senior in high school. She had two weeks off for spring break which was when the trip was going to be. I didn't have any classes that semester but had elected to stay at school anyway. Since I wasn't really doing anything anyway I decided to fly home a week early. My Mom picked me up at the airport and after a lot of hugs and kisses she drove us back to the house where I went to unpack in my old room. After I finished unpacking I went to the living room where I lay down on the sofa and watched cartoons. It didn't take long for me to fall asleep.
I woke up about three thirty in the afternoon to the sound of the front door being closed rather loudly. A few seconds later my little sister Sarah walked in only looking at her I realized that she wasn't so little anymore. In the year that I had been away she had developed very nicely. As I looked her over I saw that she had grown a few inches taller she must have been 5'6 or so and, she had long sexy legs which I followed all the way up to her short black miniskirt past her curvy swaying hips and up to her flat sexy stomach which was clearly visible since she had tied her shirt up in a knot just above her belly button. Then I saw the shirt itself it was a small white t-shirt that she had been pulled very tightly across her chest when she tied it up. It was tight enough for me to see her firm perky nipples protruding out so that it seemed they would burst through her top any second. I would have loved to stare at her all day but just then she saw me laying there and her face broke out into a huge smile. She ran over and swung her leg over me putting a knee on each side of me so that she was kneeling on the couch as well as straddling my chest. Then she leaned forward hugging me as I sat up to meet her embrace. I smiled as we hugged and her shoulder length blonde hair fell around my face.
"I didn't know you were coming so soon!" she said happily.
"Well I would have come a lot sooner if I had known I was gonna get a greeting like this." I told her smiling up at her beautiful face.
She looked down and to my dismay she climbed off me. I sat up making room for her on the couch. She plopped down next to me and gave me another long hug. Smiling I hugged her back smelling her smooth straight hair as I did. I could feel her tits pushing against my chest and it was starting to turn me on. When she finally did let go I had to shift my position a bit to hide my growing hard on from her. We sat on the couch catching up and talking about the coming trip for a few minutes and then she had to go do some homework. As soon as she had gone to her room I hurried to the bathroom put the lid down on the toilet sat down and dropped my pants. By now I was rock hard and in serious need of release but before I had a chance to do anything else there was a knock on the bathroom door. I quickly stood up flushed the toilet and pulled my pants back on. I flipped the sink on for a second and then opened the door. Sarah was standing there bouncing up and down. I had barely opened the door before she rushed in pushed me out and slammed the door closed. As I walked away I heard her sigh loudly as she started to pee. I quickly went to my room and closed the door behind me. I dropped my pants and lay down on my bed. I wrapped my hand around my throbbing hard on shuddering a bit as a wave of pleasure swept through me. I started to pump my hand up and down as my breathing became heavier. I held in a moan as I shot my load into the air. I kept pumping as streams of cum landed all over my shirt. After taking off my cum soaked shirt I lay back down and went to sleep. The rest of the week passed uneventfully.
The day before the trip my older sister Karen flew in and I volunteered to pick her up at the airport. I was waiting at the gate as the passengers started to file out. After about five minutes Karen walked out. She was wearing a loose blue button up blouse and a pair of baggy jeans which I assumed was so she would be comfortable on the flight. She quickly spotted me and her face burst into a huge smile which was framed perfectly by her wavy brown hair. She came running over and gave me a big hug pressing her tits firmly against my chest as she wrapped both arms around me. The hug lasted only a minute or so but it felt like much longer to me.
"How are you?" She asked enthusiastically.
"Fine I can't complain." I told her.
"How is everyone else?" She asked.
"Well Mom and Dad have been busy with work and preparations for this trip and Sarah ...well she is good I guess." I answer laughing a bit.
"Good. Well shall we go and get my bags little bro?" she asked putting her arm around my waist.
I put my arm across her shoulders and we went to pick up her luggage. After getting all her luggage and loading it into the car we decided to stop for lunch before heading home. Since we didn't feel like stopping for too long we decided to drive through a burger place. Karen volunteered to drive and since I had driven to the airport I happily agreed to let her drive home. We headed out and quickly found a place to drive through. We placed our order and drove around to the window to pick up our food. First the guy at the window handed us a bag with our food then he proceeded to hand over the drinks but, his hand slipped and he accidentally spilled a coke all over Karen. I tried not to laugh to much as the manager came to the window and after getting us a new drink and apologizing several times let us have our food free of charge.
"You think this is pretty funny don't you Jeremy?" Karen asked me as she smiled.
"Just a bit." I say smiling back at her.
"Well I am freezing now." She said "Would you mind helping me out here?"
"What am I supposed to do?" I asked laughing a bit as I said it.
