He will get freaked out knowing you saw." Why, he doesn't want me to know he has a little weenie?" I joked. "Dan, stop. I will see you later at dinner..." Later that night I was in the living room watching mad men. My sister was at her friend’s house, and Dennis was visiting his mother. My mom came in and sat down. "Why do you watch this show, it is so boring." It is pretty boring, honestly I watch it for her." Christina Hendricks was on the screen. "Oh, she is quiet chesty huh." You could say. Heather continued licking and fingering, but started to stretch out her other fingers. Heather reached up with her other hand and covered Sheri’s mouth. She stopped licking just long enough to lather up her finger with saliva. Then she started licking again. Sheri’s muffled voice was strained. She was totally loving was happening, but was dreading what was about to happen. With that, Heather pressed her index finger against Sheri’s asshole. Heather stroked and toyed with her for a few. I never wear underwear, so a thin string of pre-cum sparkled in the sunlight for a second when I bounced free.“Oh.” That's all she said. She got up and walked around the pool to the diving board. I watched her go, my cock following her movements with even more interest than my eyes. “Why don't you get in the water with me and cool off?” she called, just before she dove in.Dumbfounded, I struggled with my work boots, but soon I waded down the steps and stood in the shallow end, my erection. I stopped my action but really needed to cum.Jill put her mouth up to my ear and whispered “Don’t stop because of me, let me help you cum.” As she said this her hand immediately worked its way from my neck, down my back, giving my body new sensations, I couldn’t help my body from responding and again I slowly ground my pelvic into my hand. Then her soft, warm hand found its way to the crack of my ass and she maneuvered her finger into my sex hole. I froze for a minute but Jill started to finger.