i knew my step sister Misty was moving back to town with her boyfriend but i wasn't sure when. one day my parents were out by the pool relaxing when Misty walked in to the kitchen! we were both excited to see each other, her and her dude had just moved back and he was back at there place unpacking still. we made some small talk and planned to hangout then i told her i was going to do some home work and she went out to the pool area to talk to my parents. a little while later i was laying on my bed stroking my cock when Misty just burst into my room, i guess she was coming to say goodbye but instead we both froze. she came all the way into the room and closed the door behind her. she had a wicked grin on my face and teased me a little bit but then told me to keep going and for some crazy reason i did! i was stroking away why she kept staring, she pulled her pants off and that nearly caused me to blow my load. my step sisters pussy looked amazing, she crawled up onto the bed and stat between my legs and just watched me jerk off. this whole situation was crazy and super hot, i really wanted to ask to see her tits but i didn't want to cause her to get dressed and leave so i just kept going. after another minutes Misty asked if my hand was getting tired and my gut told me to play along and say yes, i told her my had was getting tired. she said she wanted to help and before i knew what had happened she was straddling me and griding her pussy on my dick. i told her this was kinda wrong but she assured me that if my dick didn't slip inside of her we had nothing to worry about. we were just two step siblings helping each other out. she mentioned her sex life with her dude sucked so she was horny too. anyways mid grind we both shifted and my dick slid inside of her! we both froze but it felt so go, i wanted to start thrusting up into her so bad but i knew it was wrong. she had a stunned look on her face, i asked her if i was inside of her, she said yes. i asked her if i should pull it out, she started to say yes but then she kind of yelled fuck no it feels so good then she started ridding my dick like a bitch in heat! i came deep inside my step sister while out parents were relaxing out by the pool! once she came down from her orgasmic high she got a panicked look on her face and slid off of me. she told me to keep this our secret and she snuck out of the room. This is part 1 of Horny Cheating Step Sister Wants My Dick, this series stars Misty Meaner. This is a POV Taboo MILF Cougar Cheating Wife CFNM Secret Quickie Hardcore Creampie Sex Series.