This gave me plenty of time to work my revenge on them before they would be missed.Their first stop was to pick up donuts and coffee at a doughnut sto...e on the main highway going through town. They used the drive up lane at the doughnut store and then drove over to the post office parking lot to eat and relax for a time. The post office was behind several stores in a small strip mall, and was separated from it by some large vegetation and trees. I waited until they had the vehicle in park and. With wine even. Again, she had only minimal clothing on. She was short, about 5’ 2”, with short hair which was salt and pepper dark brown. Her face was often smiling which made her more attractive than her rather plain features otherwise allowed. Not homely, but far from cute. Her body was solid, not fat. Not much of a waist below the aforementioned smallish breasts which she seemed to never think needed a bra. Her legs were reasonably trim.We sat next to each other at the table so we both. I was online shopping for clothes, with dad at my side, the tease in me reveled at his awkwardness as I choose my underwear, sometimes just to shock him, but I loved drawing attention to myself, with my choices, of skimpy tight panties and half cut brassieres.‘Fuck me Mariel’, he would utter in an exasperated tone, ‘that’s outright cock teasing’, and I would agree and laugh.One day out of the blue dad offered me to shop online with him again, and for more lingerie, ‘Dad’, I asked, Í thought you. Liz sucked Spencer off while he sucked me. Liz told us she wanted to try something, and instructed us to lay facing each other so we were cock to cock. We intertwined our legs so Liz could put our cocks together and suck us off. She licked up my cock and down his. She shoved both our cocks into her mouth as much as she could, and took turns sucking us. I particularly loved the feeling of our cocks rubbing together. It was a huge turn on for me. I moaned to Spencer ‘ I love the feel of your big.