"It feels so good. You suck cock so good."Both a smile and a tinge of embarrassment covered Elizabeth's face as her original assumption proved true. H...r sixteen year old son was getting a blow job."I wonder who it is?" Liz said to herself as her curiosity overcame her embarrassment. "Could it be Cindy Kelly, or maybe Donna Griffith?" Two girls Billy had been dating over the summer.The thought of interrupting them never entered her mind. She'd already had a long talk with Billy about the facts. "Well, I know you're my aunt and all and I hope you don't get mad, but, I uh, was just wondering if I could see your bum.." I managed to say."Aw, well darlin', I have shown you a lot and got you interested, and it wouldn't be fair for me to not give you a treat...", she said, her eyes twinkling with a wide, devilish grin. I couldn't believe my eyes as she went for the waistband of her panties and slowly pulled them down, and for a second, lifted her hips off me to pull down the the other side.. So you graduate at fourteen or fifteen, right?” I moved her into a different category.She nodded and chewed.“Where you from?”“You FBI or what?”“Curious. Besides, I like pretty girls.”“And I’m one?”“Yep, didn’t you know? Seeing problem maybe.”“Heard rumors, can’t be helped. My Mom’s a beaut and so’s my grandma, my father’s mother; she modeled, still is I think.”“Shows, run in the family I guess.”“Genes, like I said. Can’t be helped.”“Where are you thinking about going to college?”“You won’t. I smiled as I looked into her eyes. She turned around and I untied the back string. She tossed her top to the bank. She stepped back and began to untie her bottoms. One tie on the right hip, the other on the left. She opened her legs slightly and pulled the thing material from between them. She tossed them over on top of her top. Her pale skin looked even paler against the blue of the stream. She had a dark patch of hair above her vulva that was neatly trimmed. My mouth watered as I gazed upon.