Now my Dad’s always been my best friend. Taught me all the sports, helped with homework, great bar-b-que cook, all-around great guy. He’s the same...height as me, but in his early forties so he’s more built out. Not fat at all, very fit.I thought, oh shit, I’m in trouble now…I was so shocked when I saw him I didn’t really notice that he was naked too, and was sporting a hardon about the same size as the one I had.Like father, like son.He said in a very calm voice, “Your mother had to work late. I was a horny teenager, what can I say? I had visions of Kelly in my mind. I was finding it to be quite a turn-on that grown men, friends, and family, had obviously been making lusty comments about Kelly. And Rachel’s butt, oh lord. I was going to jack off many times thinking about her in that red bikini.What it all added up to was that my cock was rock hard and I was on another planet when the frisbee came sailing my way. And I certainly didn’t see Rachel leap into the air trying to catch it.. 'In a flash of daring that I didn't know I had, I blurts out, "I would love to. When should I be ready and what should I wear." Two O'clock would be fine and warm casual clothes would be most appropriate." He waves timidly as he proceeds to his service truck.As I close the door the misgivings and doubts begin to set in. 'Most appropriate', Jesus Christ, who talks like that to day? I realize that all I know is his first name.In a brief burst of insight I call the Service Company and ask them if. My nipples ached and throbbed, shooting bliss down to my cunt. I latched onto her clit, sucking hard. My fingers kneaded her rump as I held her tight. I pulled her down to my face.She moaned into my twat. “Ooh, that's it. Such a naughty big sis. Eat my cunt! You're going to make me cum!”“Oh, yes, yes,” I moaned, my nipples throbbing. They were so sensitive, and her belly felt incredible. “I plan on it!”My little sister dove her tongue deep into my pussy. She fluttered it around, such a naughty.