Best stepmom and stepsis (chapter 1)

My name is Stan. I am 17yrs old and going to high school. Living with my dad. My dad is 40yrs old. He works as a manager of a company. So he got paid well and we were living a wealthy life in a big house with swimming pool. My mom died a couple of years ago in a car accident with dad. But dad survived with severe injuries. But mom died. He was so sad after mom died he never did anything for fun. He only went to work. Otherwise stayed at home. I tried everything i could to cheer him up but to no luck. Until oneday he met Lana. Lana was a single mom of a 15yr old girl named Jenna. Lana was working at a supermart as a cashier. Lana is 34yrs old. Her body is so hot with big tits and a big round butt thats giggles whe she walks. He hair is blonde and had big blue eyes that sparkle. Dad met her at the supermart and the hit it off nicely. They started dating. Dad once again started to look happy. They dated for 2 months and they decided to get married. They got married and Lana and Jenna moved into our house. Lana and Jenna was also very nice people. We were living like a nice family. Lana even asked me to call her mom. Life went on but something started to bother me. Lana and Jenna sunbathes everyday and i was having a hard time not trying to look. My room upstairs had a good view of the pool. Even Jenna the 15yr old had a smoking hot body. Not busty as her mom but i am sure that nobody will believe that she is a 15yr old. Sometimes they sunbath topless but never totally nude. Lana was very casual never try to hide her body inside the house. But she was the best stepmom anyone can have. Some times they just roam around the house wrapped only in a towel. Life went on like this until oneday i came back home from school earlier and saw Lana masturbating. Her room door was ajar and i peeked in to say hi but what i saw had my eyes popped out. Lana was on all fours and had her ass up in the air. She had a dildo up her ass. She was fucking her ass and moaning. I stepped back a little and was watching the hottest scene i ever saw in my life. My cock began to stir in my pants. By the way i had a pretty impressive 8 inch cock. It was a couple of minutes then Lana turned around and saw me. She covered herself in embarrasment. I ran to my room and my heart was beating so fast. I didnt know what to say if Lana asked i was so frightened. About 30 minutes later i heard a knock on my door it Lana. She asked if she could come inside. I told her to come inside. She was wearing a robe and sat beside me on my bed. She said she was sorry that i had to see that. And she was so horny that she couldnt stop herself. The real reason that she was doing that was because of my father she said. Lana said my father is a very good man and even in bed he is very good. But that he never wanted to do anal. And that Lana is an anal freak. Lana said that my dad plays with her ass and even licks her ass but never wanted to fuck her ass. Thats why she is always horny for anal. I told her that it was cool and that she dont have to be embarassed about it. She hugged me and her robe opened showing her big tits. I was looking at her tits and she asked that if i was liking what i was seeing. I didnt know what to say so i didnt answer. She pulled her robe of her shoulders and the robe fell to her tummy showing me her full big boobs. They look so pretty and tasty i wanted to suck them but i couldnt dare move and just kept on looking at those beautiful juggs. She asked me if i wanted to touch them and i said yes. She took my hands and make me hold those big melons that i couldnt fit each in a hand. I played with them pinching her hard nipples making them even harder. I just couldnt take it anymore and began sucking on her nipples. She pulled my face to her chest and i just kept on sucking both her tits. I sucked her tits for a while and she got up and i was still sitting on the bed. She pulled my pants and got between my legs and grabbed my hard cock. She spat on it and stroked it for a while before sucking on my cock. She sucked my cock so good i came in her mouth. She swallowed the full load. Then i got up and pushed her on the bed and got between her legs. I began to lick and suck on her pussy. It was so good i couldnt get enough of it. Then i lifted her ass a little and kept a pillow under her ass that gave a nice view of her rosebud. I began to eat her ass like crazy and she came a couple of times by just getting her ass eaten that i knew how horny she is for getting ass fucked. Then i aimed my cock at the entrance of her pussy and she stopped me. I was confused and she said that her pussy belongs to my dad only and that she needed to be ass fucked. It was fine cuz even i liked anal more than vaginal. I aimed my cockhead to ass and pushed a little and my cock popped inside of her hot ass. I kept pushing slowly but firmly and i was ball deep buried in her ass. She said to just fuck her and i knew she was already ready for anal from the previous dildo fucking. I began to fuck in a slow rythm 1st and began fucking a little harder but not too fast cuz i didnt want to cum again so soon. I fucked her ass in missionary for a while and i needed a better view of her ass so i rolled her and pulled her into doggy style. Then i wanted to taste her ass a little more so again i grabbed both her ass cheeks and pulled them apart and began to lick and suck on her tasty rosebud. I even tongue fucked her ass it was so good. I ate her ass for a while and rammed my cock in her ass making her gasp. I fucked her hard and fast. I grabbed her juggs from behind and kept on fucked her hot ass. I fucked her for about 20 minutes in that position and i was about to cum so i slowed a little and Lana told me not to slow down and just fuck her hard and cum in her ass. So i obliged and fucked as hard as i can and came deep in her ass. We both fell on the bed exhausted my cock still buried in her ass. We caught our breath and got up she rolled onto her back and spreaded her legs and my cum started to ooze out of her ass. Her asshole was still gaped open. She took all the cum and swallowed every drop she could take. I kissed Lana on the lips. She got up and walked out of my room naked. I was watching her ass jiggle as she walked out of my room. Whole day we didnt talk. Then after dinner she met me when i was alone and told me to please keep the secret and if i wanted that i could fuck her ass any chance we get. But i was never to fuck her pussy. And we both agreed to never tell anyone about it. We kept our relationship hidden for about a year the it happend...
We were fucking hard and i saw someone looking through the ajar door and it Jenna. Jenna saw me fucking her mom. She was playing with her pussy through her skirt. I kept fucking Lana and after i finished i went into Jenna's room to talk about what happend.... so what happend after that will be continued in another story.....