As he forced his finger in deeper, he discovered that she was not a virgin. It was more likely that she hadnt had very much sex. That didnt matter, th...ugh. What mattered was that he had her moaning madly as his finger continuously explored her depths. Finally, he yanked her underwear off and knelt to taste her. Celina shivered as his tongue slid up her wet lips. Then he began fingering her once more as his tongue flicked over her clitoris. She arched her spine and cried out, grinding her pussy. "I think we're in the way of something here. Maybe we had better step back."I turned to look at Gregory, my 13 year old son with a tall, ungainly body and a wild mop of hair that almost covered his eyes."What," I replied impatiently as he tugged at my sleeve again."Isn't it great to see all these classic cars here? They don't make them like this anymore."Just then the angry yells of other teenage boys caught my attention."Get off the track, you idiot, you are going to wreck our cars."I turned. We quickly got undressed and join her on the bed. Tony got between her legs and started licking her beautiful pussy while I fondled and kissed her beautiful tits as she reached down stroking my cock with her hand. A few minutes later Tony and I traded places.I munched on her pussy for several minutes as Tony straddled across her chest sliding his big cock between her beautiful tits. She bent her legs at the knees and spread them open and said "Come on Mark, get up here and put your young hard. That's right. Even when he was just a puppy, she used to play with his birdie. And once he started getting nuts, she practically never let him alone any chance she got. I would come home and find them in bed together or on the floor or even with him on a table in front of her: and there she would be, playing prettily with his pork.Women are that way. How many girls have you known that played with their little brother's pricks when they were kids? I've known plenty of them who, when they were in.