After about three minutes of my licking her she got off the bed, moved the camera to a different spot and then got back on the bed with me. My cock wa... rock hard even though I wasn't the least bit happy with what she was doing to me. Liz gave me another thirty seconds of mouth time and then she mounted me and started riding up and down on my cock."Come on Bobby, make me cum, get big sister off. Fuck me Bobby, fuck me."I didn't, mostly because I could barely move given the way she had me tied. I was lifting my ass up as she stroked slowly and increasing the pace. My left had started to fondle her breast, her brown nipples were erect and I squeezed them. I squeezed her boobs and I never thought my morning would be this good. After ten minutes I cummed on her hand and she signaled me to go to the bathroom and clean it. I quickly went there and peed and then cleaned my cock and came back to see the heaven.My aunt was on her back and her legs spread wide, her bald pussy was shining in. "how you doing back there kid?" her dad asked, looking in the rearview mirror. "reckon we could stop for a break?" Jessie asked. She didn't need to pee or anything, she just wanted to stretch her legs for a little bit. "sure thing. your mother's twisting a pretzel over here." Jessie groaned, rolled her eyes, and focused back on her switch. The car rolled to a stop, and her mother hurried off to the bathrooms. Jessie stepped out and stretched. "you alright?" Jessie nodded, and took a deep. She started sucking me again as Chris and Tom took up their positions in each hand. Tammy Sue started moving what seemed like every part of her sexy body, up and down, in and out, and writhing in the early stages of total ecstasy. We were all sweating and moving in unison as we were trying to turn Tammy Sue on and get off ourselves. Tammy suddenly stopped sucking again long enough to say, " I am cumming! Keep fucking and no matter what else happened when we came she wanted to see the spunk.