[This story will make more sense if you read the first three chapters first (all in Part One). They are all together in the story titled 'My Two Daughters' which is in the 'Mature' section of Literotica.
All persons in this story are eighteen years of age or over.]
Chapter 4
The next couple of weeks were pretty intense for all of us as Samantha and Lucy sat for their final exams. But at last the exams were all over, and the girls set off for the party town up the coast. Pam and I made good use of this alone time, of course.
When the girls returned, it was obvious to me that Samantha had had sex. I had expected this, and so I was ready for it. Lucy told me all about the boy that Sam had met. His name was Greg, and he lived in our city but he had attended a different school to Sam and Lucy. Lucy assured me that he was a nice guy. I did meet him eventually and I agreed with Lucy.
A few days after the girls had returned, Pam told me that she was expecting a house guest, a girl who was Lucy's step-sister, well sort of. Lucy's father had remarried after he and Pam had divorced, and this girl, whose name was Tamara, was his second wife's daughter from her first marriage. She was about a year older than Lucy. Lucy visited her father once a year, usually, and she and Tamara had become friends. And so occasionally Tamara would come to visit Lucy.
"You'll like Tamara," said Pam to me, cheekily. "Her titties are nearly as big as Lucy's. And she's a complete slut. I think that she taught Lucy all that she knows."
Tamara arrived the next day, and when I met her for the first time I had to agree with Pam. Tamara had 'slut' written all over her. She was strikingly beautiful, with long dark hair and very dark eyes, which had a 'fuck me now' look in them. And her mouth just looked as though it was made for sucking cocks.
Lucy introduced me to Tamara as 'Uncle Steve.' Usually she called me 'daddy', since the whole fake adoption thing. She knew that I liked it, and she seemed to like calling me that. But since Tamara lived with Lucy's actual daddy, Lucy could hardly call me 'daddy' in front of Tamara. So 'Uncle Steve' it was. And then Tamara called me Uncle Steve as well.
A couple of days later the weather was very hot, and Sam invited Lucy and Tamara over for a swim in our pool. There was an excellent view of the pool from my kitchen window, and I watched the girls play in the water. Then Tamara reached around and undid the top to her bikini, and tossed it out of the pool. Even from that distance I could see that her tits were superb!
"What are you doing?" asked Sam, surprised.
"I love to swim in the nude," replied Tamara. "You don't mind, do you?"
"Well, no, I suppose not," said Sam. "But daddy might see you."
"Oooh, I hope so!" said Tamara. "Your dad's so hot! Just the thought of him looking at me in the nude is almost enough to make me cum." With that, she reached down and pulled off her bikini bottom and tossed it on the grass next to her top.
For the next twenty minutes or so I just stood there, transfixed by the sight of this beautiful naked girl as she frolicked in the pool. Then they all climbed out, and lay in the sun. I suppose that it was completely accidental, but Tamara lay on her back, with her legs towards the house, giving me a perfect view of her pussy. By now my cock was rock hard, and I stroked it as I stared at Tamara's big brown nipples and her beautiful shaved pussy.
A couple of days later, Lucy and Tamara were at our house when the phone rang. It was Pam. She said that they were really busy at work, and could Lucy come in and help out. Lucy sometimes did this when they were busy, and so she said yes.
