I was about two seconds from true masturbation.But a deeper part of me had wanted to see what kind of prize waswaiting for me at the end of the tunnel...so to speak. I wassurprisingly disappointed. And I was sure I wouldn't get anotherchance for that again.I stepped out of the shower and towelled off. Looking in themirror, there was that disconnected feeling again, that someoneelse was in the room with me. "Sorry girl friend," I said tomirror, "I tried to give you something to remember me by.. ”“Shhh, quit pestering me, Sarah,” as she grew silent concentrating on herself. I watched as she pushed one, then two fingers deep inside her as the pink fabric collected more of her nectar.Then she lifter her body off my chest and lowered her crotch over my mouth. I sucked and sucked trying to get as much of her juices as I could. And she began putting her full weight on my face making it hard to breathe.It was then she leaned back and stretched an arm till her hand was between my legs.. Just as I was about to cum (sucking cock is something that Marcie is particularly skilled at), I realized why I’d thought she would agree to it immediately, despite its far-fetched nature: Because Lucy had.Lucy had agreed to the ridiculous hypothetical I’d posed to her; the idea of a world where incest wasn’t taboo. I hadn’t had to coax her into it; the moment I’d suggested it, she’d nodded.As Marcie silently swallowed my seed, my mind briefly went blank, but when I regained focus, I realized. . Miss C answered "on several occasions, she inserts objects into her rectum, Doctor". Mom added "Yes, that is true.... she plays with her butt almost as much as her vaginal"! I knew where this was going and then felt the Doctor insert the speculum into my little hole and open me up! I was spread until i thought i would split! It's then that the Doctor suggested that Miss C remove her clothes as well and find a comfortable spot riding my mouth to orgasm. Miss C, being the proper one, took her.