We sat down to eat & she began to tell me about her date the weekend before we came out. My cock stiffened as she told me about how Jason tried to fuck her in his pickup & how she blew him on the hood of the truck. She asked me if I could go see if the other bag was left in the boat. I went to stand up & quickly realized that my cock was totally hard & she would see it. I figured, what the Heck...we talk about it anyway, who cares. She grew silent |& as I looked back, her mouth was wide open...staring off into space. Well, not actually space...more like my cock!
"Boy...Lisa & Sarah weren't kidding" she said staring at me. I blushed & kicked a little sand in her direction. She threw some back & before we knew it, we were standing, wrestling with each other. I tripped & was off-balance & headed towards the water. She followed me in & soon we were soaking wet. I stood up & ran out of the lake. Then I watched, as my baby sister emerged from the water. Her suit was completely see through. Her nipples stuck out & by the looks of it, she had a shaved pussy. My cock grew so hard & we just stood there looking at each other. The next thing I knew, I reached out & grabbed her & kissed her. She returned the kiss as if it had been building up for weeks. Our tongues danced as our hands explored each other. In a flash, our suits were off & we were on the blanket kissing & fondling. I took one of her nipples in my mouth & she grabbed my cock.
I leaned back & she leaned forward & I moaned as I felt my sister's hot mouth wrap around my cock. She sucked me long & deep. I pushed her away& ate her shaved cunt. She was bucking & moaning and she finally said "Fuck Me...Fuck me Hard!" I moved forward & slid my cock into her tight cunt. She moaned loudly & then got into it. We fucked in every position imaginable. Her pussy clamped on my cock with such force that I knew I was going to cum soon. She knew it & I knew that she also was close. As we fucked, I rubbed her clit & that sent her over the edge. She came so hard on my cock that it set me off. I shot load after load of hot cum deep in her pussy, her moans urging me further. When I pulled out, my cock was white with a mixture of our cum. We kissed a little more then headed into the lake to wash up.
We got back right after mom & dad & they asked how our day went. We chuckled & said it was great! We did some exploring & are heading back there tomorrow!