We didn't always spend our evenings together. Sometimes she just wanted to have alone-time, and would spend her time in her room, and would lie on her...bed, and just do her own thing.After I had been in bed for about an hour, my door slowly opened, and I turned my head slowly, and saw both girls at my door, looking in my direction. It was a moonless night, so they couldn't see me all that well. There was a murmured conversation, and Rachel left Mel at the door, crept tiptoed up to my bed, and. I slowly enetered her-her vaginal heat and sweetness slowly engulfed my dick-it felt so good I had to cry out. Cindy threw her pretty head back and said, "Ahhhhh...yesss...please..." I slowly began to thrust into her gently, and Amy pulled her sister's legs back toward her chest to make my thrusts deeper. As I thrust a little faster and deeper, Cindy's face looked pained, and she sighed "God...ahhhh...sooo...goooood..." Cindy began to pull hard on my butt, indicating that she wanted me to. In time, we became more than that. And for Melinda, I was the only one she ever knew or called daddy. To her, I was, even though she had been told long ago that I wasn't really her father. For all intense and purposes, as far as she was concerned anyway, I really was.Melinda was a feisty little go-getter, just like her mother had been. Popular in school, almost to a fault, she'd been a cheerleader, active in gymnastics and had even considered briefly trying out for the Olympics at one point,. As you get older it takes longer and longer, surely.''Not me, it don't. I can still manage, given 'alf a chance. I could still do that girl of yorn'. He boasted.'Tonight you will get your chance, and if you succeed I will get you a job, looking after wayward girls. You'd like that!' John was thrilled with the coarse speech of the man. It would go down well in the school where they had to prepare the girls for men like him. Kim would soon suss him out.In the bedroom Helen looked at Kim. 'How did.