Finally, she opened her door and hopped in. Then she fired up the engine and the headlights and started backing out of the spot.“Hey!” I yelled, b...nging desperately on the window and trying the door handle again.She started moving slowly forward through the lot, acting as if I wasn’t there. On impulse I took some quick steps and jumped up onto the hood. It was a stupid move. My camera swung about wildly as I stretched out limbs to avoid falling back to the sandy concrete. I had envisioned it. Coming down, into the small of his back barely touching the seam of his bathing suit and then he got up and asked me to be down on my stomach and did the same to me. First my shoulders, then moving slowly down my back. As he reached the base of my back, he rubbed closer and closer to the band of my Speedo and even slipped the tips of his fingers inside; touching the very top of my silky smooth ass, whispering that the sun was strong and it could penetrate easily, without protection. I was kind. When I got in, mom and dad were both sitting on their bed with their pajamas on. Mom moved away from dad a little and patted the bed before asking me to sit between them. I sat down and folded my hands in my lap because I was sort of nervous. Mom looked down at me and asked, “Gwen, are you sure you really want to do this? You know you can’t say anything to anybody about what we do?”“I know I need to keep what we do here mom,” I told her, “but I want to help you and dad too.”“I know. Then to my amazement she turned and got dressed right in front of me. She had her back to me but i still got a raging hard-on from the site of her ass and bare back.After she was dressed and I had finished moving the furniture we went outside and did some yard work. It was a hot day in July and we both got pretty sweaty. When we were done she brought me in for some lemonade. We got to talking and she asked if I wanted to take a shower to cool down. I said sure not thinking anything of it since.