All in fun. No harm intended.It was only later, in the family's mountain cabin, when the stakes got higher.On weekends in the Summer, my family would ...o to the cabin and my sister and i were usually encouraged to bring a friend. When it was time to go to bed, all of the k**s would sleep in the garage downstairs, where there were a couple of mattresses and sleeping bags. We usually would get pretty raucous and yell and giggle until my dad would open the trap door in the living room, from which a. “There only boobs you know, haven’t you seen a girls boobs before?” she asked.I blushed, “Not like yours” came my timid response. Dan just “tutted”, whipped off her top, including her bra and jumped into the water. Taken a bit by surprise I shouted after her, “I’ve brought my trunks today”. Dan surfaced then ,raising her right arm above the water, threw her panties onto the bank, ”Today’s skinny dipping day, just like we used to” she shouted back. I laughed at her, it’s all I could do, that. I lay back, close my eyes and imagine the two of us in bed making love. My hand slips under the water and finds my already excited pussy. My index finger slips between the folds and into my pussy. My other hand teases my already stiff nipples. It does not take long to reach an orgasm.“Oh God Natalie, suck my clit!”I came, arching my back which thrusts my tits up out of the water. The cool air just made my erect nipples harder and I come once again as I keep fingering myself. When I am finished. J was speaking to me, praising me and encouraging me to lick and suck George’s dripping cock. I can see where I got my genetics for producing litres of pre cum from, he was dripping like a tap as I knelt before him and his lover, dressed up in my new bitch gear. J told me to lean back and to grab the heels of my stilettos as they both stood closer together and gave me the opportunity to lick the heads of both their cocks as they slipped their arms around each other’s waists and kissed as I did.