"Hi Michael . . . or do you prefer Mike?" she asked teasingly. "Hi Katie . . . either one works . . . but people pretty much call me Mike," he said l...oking over her outfit, which did nothing to stop his cock from rising even more. The light blue top sat proudly on her developing chest and he was almost certain he couldn't see any type of bra or underwear underneath. A quick glance downward was equally as stimulating as her dark blue Reebok cut shorts, with the stretchy cotton/spandex fabric .. After a few moments, she pushed another finger in, making her shiver and moan again. This usually was her technique for a quick orgasm.But suddenly, she felt adventurous. She felt like experimenting. She stopped rubbing her clit, as she was already close to cumming - which she didn't want yet. She added a third finger inside her pussy. She felt the need to be filled; she wanted to feel the fullness at the maximum. And she was willing to see how far she could go. She allowed her pussy to stretch. "That is so-o-o cool!" Sandy said out loud, breaking my concentration as the men left the cavern. Then she slid under my arm and into my lap as she kissed me."There's more, isn't there?" Anna asked. But with Sandy's lips covering mine, I couldn't answer. I sensed a sisterly conflict arising, as Anna wanted to know more of the cavern's story, but Sandy wanted her itch scratched."C'mon, Anna. It's been like, forever. I can't wait any longer. P-leas-se!" Sandy begged. I looked over at Anna who. As we lay together, still joined by my semi-hard cock, we communicated and adored each other. I thought back on her powerful ass and on what she’d just done with it. . . on the potential for the future. . .She had been designed for coitus - a natural!Soon we lay together enjoying our intimacy. . . I spoke first, “You were fantastic.” and she replied that she was sorry she’d been so far behind. I explained that it’d get better and after a lunch, without clothing, at her kitchen table and a quick.