Brother Fucks Sister in Bathtub TRAILER

She put her hands on my cheeks, locked her eyes on mine and followed my movement with her own. We were fucking. It didn’t fuck register at all that I had just lost my virginity, it didn’t matter she was my older sister, it didn’t matter our parents were just a few feet away, the only thing in the world that mattered just then is what we were doing. It was all new to me. I’d been fantasizing about several girls and knew what I wanted to do with them but now that I was having sex with my sister they vanished from my thoughts in an instant. My entire concentration, my entire life force was focused on my sister. We mashed our doggystyle bodies together urgently but softly, not wanting to shake the RV. Madison cautioned me to “Be careful, go slow.” We had both felt the results of mom and dad having sex in the back and she didn’t want them to wake up to the same motion. She didn’t have to blowjob worry. About the time she warned me to move slower, my balls erupted violently and I filled her family with surge after surge of superheated cum. I had never before felt anything like the violent pleasure of ejaculating into Madison that night. We lay side by side panting, cooling off. Madison used paper towels to clean up the mess then we got dressed again. When we were done she stood against me, tits mashed against my chest and kissed me softly on the corner of my mouth then purred into my ear, “You better sleep in the seat. I don’t know if I could keep my hands off you if you come back to the bed with me.” The next morning when I awoke Mom was cooking breakfast; the bunk was a table and Madison was gone. I stretched, yawned then went to find her. Just as I got to the ground she came around the back corner of the RV, she saw me and flashed large welcoming smile, her face radiant in the morning light. She gestured to me and stepped back behind the motor-home. I went around to find her and was momentarily stunned when she palmed my cheeks then kissed me solidly on the mouth. She pulled her head back, looked at me teen with large blue eyes and a big smile then said “Don’t worry, I liked it.” I was relieved that she would talk to me, not avoid me or fret about what we did. We weren’t going anywhere for a few days so Madison and I took off to the lake after breakfast. As we walked we talked. “What happened?” I asked, “How come you did that?” “I'm not sure. I was thinking about you watching me when we had sex and began to wonder if you had been with anybody yet. I know some girls who would like to date you and they keep telling me that you’re hot and when two of them asked me if you had taken any girl to bed, I couldn’t answer them. From there I tried to imagine you with no clothes on and screwing a girl and I sort of got horny and decided to find out. “Well, welcome to the class. I shot him a stern look, "Vin, I wouldn't have even mentioned it if I didn't have more than circumstantial evidence and speculation." He made it so we shared her. He could not believe it when she reached around and untied the strings on the bikini bottom. The girl stepped closer and ran a testing finger slowly over Katya’s open lips, provoking another deep sigh from her. Her teen mind wandered back to the events of two days ago where she had met that gorgeous stranger at doggystyle fuck the park and had scandously gone down on him. “Cool, thanks.” I chuckled blowjob family aloud. She wrapped legs across my back and pulled me tight. Her pussy lips swallowed the segmented bands while she moaned and gasped.