Backstory:
My name is Chris Johnson and I am 20 years old. I am 6 foot 3 inches and weigh about 350 pounds. So I am a big boy. I am a college student at the local university. My mom, Shelly, is a single mother and she works as an accountant. She is 40 years old and like me is a bit on the bigger side. She probably weighs 275 pounds and is 5 foot 8 inches tall. She has beautiful shoulder length brown hair and big triple D boobs and a nice big round ass to go with it. My sister, Lily, is 18 and still in high school. She is 5 foot 6 inches tall and weighs around 220 pounds her boobs are a lot like my mom's but perkier because of her young age and she has an ass that any guy would be proud to hold.
I am still a virgin and it all has to do with me being afraid of talking to girls because I have a small 5 inch cock. I do know, from talking with her, that my sister is a virgin as well. She says it is because she is ugly and it really has to do with her being a bit nerdy and not going to social functions at school. I don't know much about my mom's sex life before kids, but I know that she hasn't been with anyone ever since dad left when I was 4. I have always felt wrong for my thoughts, but for years I have had thoughts about my mother and once my sister got older I began to have the same thoughts about her.
Story:
It is Saturday morning and I wake up to my mother knocking on my door. "Chris, I am going to visit granny and grandpa, I will be back tonight and your sister is out with friends."
"Ok mom, be safe and tell them I said hi and that I love them."
She says bye and heads out. As soon as she walks leaves, I jump out of bed and head to her room and find her dirty panties and pull out my small cock and begin stroking it as I sniff her thong. The smell is very fresh and I assume that they must have been what she wore to bed and they have a little dampness that I stick my tongue out and taste. I am in heaven as I stroke my cock and get whiff after whiff of my mother's heavenly scent. After stroking my cock for 30 minutes, I wrap her thong around my cock and let out a nice load of cum into her sexy used panties.
I then put them back in her hamper and go get in the shower and then eat a nice bowl of cereal. After I ate, I got the urge to see what my sister's hamper had to offer, so I go to her room and find a nice looking pair that has a nice spot in the front. So I take my shorts off and lie on her bed and begin to sniff her panties while slowly stroking my cock. Unbeknownst to me, my sister arrived home and since I left her door open she saw me stroking my cock while smelling her panties. I was moaning her name and saying "take my cock Lily." She didn't know what to do so she left and called me.
"Hey, I'm on my way home and wanted to know if you needed anything."
"No, but thanks for asking."
With her on her way home, I put her panties away and got dressed and went to the couch and sat down to watch TV. She finally walks in and we say hi to each other and she goes off to her room and I watch her ass as she walks by. As she enters her room, I slide my hand into my shorts and start stroking my cock thinking off fucking her hard until we cum together. I finally blow a load of hot cum and sit there watching TV. A few hours go by and I eat a sandwich for lunch and my sister walks out in a very tight pink bikini.
"Want to join me in the pool?"
"uhhh... sure, I uhh guess." I managed to spit out something as I gazed at her stunning body. I basically sprint up to my room and strip off my clothes and throw on my swimsuit and head back down. As I walk outside, I see my sister bent over putting sunscreen on her legs and I instantly get hard. I walk up and begin applying sunscreen to my chest and arms.
"Hey Lily, can you put some on my back?"
"Sure." She rubs sunscreen on my back. "Will you do my back?"
I put sunscreen on her back and rub it in and then we get in the pool and start swimming around. We talked about everyday things for a bit until she swam over to me.
